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	<id>https://rolexopedia.net/index.php?action=history&amp;feed=atom&amp;title=Reference%3A1599</id>
	<title>Reference:1599 - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://rolexopedia.net/index.php?action=history&amp;feed=atom&amp;title=Reference%3A1599"/>
	<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:1599&amp;action=history"/>
	<updated>2026-10-28T15:23:30Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.43.11</generator>
	<entry>
		<id>https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13930&amp;oldid=prev</id>
		<title>Admin: Copy edit: remove redundant qualification from movement notes</title>
		<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13930&amp;oldid=prev"/>
		<updated>2026-10-28T11:11:33Z</updated>

		<summary type="html">&lt;p&gt;Copy edit: remove redundant qualification from movement notes&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:11, 28 October 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot;&gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/div&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/div&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Auction catalogues use 1599 for covered Sporting Princes, sometimes &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;after &lt;/del&gt;1872, 1879 or 1883. Bonhams labels an open-face Prince ref. 1599; Dorotheum lists 1599 as the case number on another open-face Prince. The records leave Rolex&#039;s use of the number unclear.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Auction catalogues use 1599 for covered Sporting Princes, sometimes &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;paired with &lt;/ins&gt;1872, 1879 or 1883. Bonhams labels an open-face Prince ref. 1599; Dorotheum lists 1599 as the case number on another open-face Prince. The records leave Rolex&#039;s use of the number unclear.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Core facts==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Core facts==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l54&quot;&gt;Line 54:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 54:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Movement notes==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Movement notes==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The 1994 Antiquorum lot pairs 1872-1599 with a 7-line, 18-jewel Ultra Prima. Other covered examples have Extra Prima movements: Antiquorum&#039;s 2004 ref. 1599 and Christie&#039;s 1879/1599 are listed as 15-jewel, while Watches of Knightsbridge&#039;s 1599 and Antiquorum&#039;s 1883/1599 are listed as 17-jewel. Christie&#039;s says its movement was timed in six positions ([https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271])&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. The lots document both grades, but give no date for a change between them&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The 1994 Antiquorum lot pairs 1872-1599 with a 7-line, 18-jewel Ultra Prima. Other covered examples have Extra Prima movements: Antiquorum&#039;s 2004 ref. 1599 and Christie&#039;s 1879/1599 are listed as 15-jewel, while Watches of Knightsbridge&#039;s 1599 and Antiquorum&#039;s 1883/1599 are listed as 17-jewel. Christie&#039;s says its movement was timed in six positions (&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://www.christies.com/en/lot/lot-4785370 Christie&#039;s, lot 101]; &lt;/ins&gt;[https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271]).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
	<entry>
		<id>https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13929&amp;oldid=prev</id>
		<title>Admin: Copy edit: remove stiff phrasing and clarify catalogue evidence</title>
		<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13929&amp;oldid=prev"/>
		<updated>2026-10-28T11:10:50Z</updated>

		<summary type="html">&lt;p&gt;Copy edit: remove stiff phrasing and clarify catalogue evidence&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:10, 28 October 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot;&gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/div&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/div&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Catalogues &lt;/del&gt;use &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ref. &lt;/del&gt;1599 for covered Sporting Princes &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and also pair it with &lt;/del&gt;1872, 1879 or 1883. Bonhams &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;calls &lt;/del&gt;an open-face Prince ref. 1599; Dorotheum &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;records &lt;/del&gt;case &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;no. 1599 &lt;/del&gt;on &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a similar watch&lt;/del&gt;. The records &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;do not show whether &lt;/del&gt;Rolex &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;used &lt;/del&gt;the number &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;for all these watches&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Auction catalogues &lt;/ins&gt;use 1599 for covered Sporting Princes&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, sometimes after &lt;/ins&gt;1872, 1879 or 1883. Bonhams &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;labels &lt;/ins&gt;an open-face Prince ref. 1599; Dorotheum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lists 1599 as the &lt;/ins&gt;case &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number &lt;/ins&gt;on &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;another open-face Prince&lt;/ins&gt;. The records &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;leave &lt;/ins&gt;Rolex&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s use of &lt;/ins&gt;the number &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unclear&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Core facts==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Core facts==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l42&quot;&gt;Line 42:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 42:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Where it sits in the line==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Where it sits in the line==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ref. 1599 is a rectangular Prince. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;In &lt;/del&gt;&#039;&#039;The Watch: A Twentieth-Century Style History&#039;&#039; (Prestel, 2019)&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, Alexander Barter describes the Sporting Prince and Sporting Princess as purse watches with sliding covers. His 1931 example is signed Texina&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ref. 1599 is a rectangular Prince. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Alexander Barter describes the sliding-cover Sporting Prince and Sporting Princess as purse watches in &lt;/ins&gt;&#039;&#039;The Watch: A Twentieth-Century Style History&#039;&#039; (Prestel, 2019).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Hans Wilsdorf&amp;#039;s Swiss patent CH 146038 A, filed on 26 December 1929 and published on 31 March 1931, shows two case parts that slide relative to one another. The watch sits in a spring-loaded frame that pivots open. Patent CH 151577 A, filed on 17 March 1930 and published on 15 December 1931, gives further detail on the arrangement. Christie&amp;#039;s and Antiquorum use the name Sporting Prince for covered examples ([https://www.christies.com/en/lot/lot-4785370 Christie&amp;#039;s lot 101]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum lot 583]; [https://patents.google.com/patent/CH146038A/en CH 146038 A]; [https://patents.google.com/patent/CH151577A/en CH 151577 A]).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Hans Wilsdorf&amp;#039;s Swiss patent CH 146038 A, filed on 26 December 1929 and published on 31 March 1931, shows two case parts that slide relative to one another. The watch sits in a spring-loaded frame that pivots open. Patent CH 151577 A, filed on 17 March 1930 and published on 15 December 1931, gives further detail on the arrangement. Christie&amp;#039;s and Antiquorum use the name Sporting Prince for covered examples ([https://www.christies.com/en/lot/lot-4785370 Christie&amp;#039;s lot 101]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum lot 583]; [https://patents.google.com/patent/CH146038A/en CH 146038 A]; [https://patents.google.com/patent/CH151577A/en CH 151577 A]).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l50&quot;&gt;Line 50:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 50:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Production outline==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Production outline==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&#039;s &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimates &lt;/del&gt;its 1879/1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;at &lt;/del&gt;circa 1931 and reports a Glasgow import mark from that year ([https://www.christies.com/en/lot/lot-4785370 lot 101]). Antiquorum dates two 1883/1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;listings &lt;/del&gt;to 1932 and another to the 1930s. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Their &lt;/del&gt;descriptions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are close enough that the three &lt;/del&gt;sales &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;may include the same &lt;/del&gt;watch ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-36-510 lot 510]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-74-138 lot 138]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 lot 271]). Antiquorum&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s 1994 listing &lt;/del&gt;for &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ref. &lt;/del&gt;1872-1599 records a Bienne chronometry certificate dated 28 August 1935 ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 lot 97]). The certificate dates the rating&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/del&gt;not the watch or the reference&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s production span&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&#039;s &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dates &lt;/ins&gt;its 1879/1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to &lt;/ins&gt;circa 1931 and reports a Glasgow import mark from that year ([https://www.christies.com/en/lot/lot-4785370 lot 101]). Antiquorum dates two 1883/1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;examples &lt;/ins&gt;to 1932 and another to the 1930s. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Similar &lt;/ins&gt;descriptions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;suggest these could be repeat &lt;/ins&gt;sales &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;of one &lt;/ins&gt;watch ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-36-510 lot 510]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-74-138 lot 138]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 lot 271]). &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The 1994 &lt;/ins&gt;Antiquorum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;entry &lt;/ins&gt;for 1872-1599 records a Bienne chronometry certificate dated 28 August 1935 ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 lot 97]). The certificate dates the rating&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; it does &lt;/ins&gt;not &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;date &lt;/ins&gt;the watch or the reference.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Movement notes==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Movement notes==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s 1994 &lt;/del&gt;1872-1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;has &lt;/del&gt;a 7-line, 18-jewel Ultra Prima. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The &lt;/del&gt;Extra Prima &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;appears in the other covered-watch records&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;15 jewels in &lt;/del&gt;Antiquorum&#039;s 2004 ref. 1599 and Christie&#039;s 1879/1599, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and 17 jewels in &lt;/del&gt;Watches of Knightsbridge&#039;s &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ref. &lt;/del&gt;1599 and Antiquorum&#039;s 1883/1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;listings&lt;/del&gt;. Christie&#039;s says its movement was timed in six positions ([https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271]). &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;These catalogues show different examples; they do not &lt;/del&gt;date a change between &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;grades&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The 1994 &lt;/ins&gt;Antiquorum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lot pairs &lt;/ins&gt;1872-1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;with &lt;/ins&gt;a 7-line, 18-jewel Ultra Prima. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Other covered examples have &lt;/ins&gt;Extra Prima &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;movements&lt;/ins&gt;: Antiquorum&#039;s 2004 ref. 1599 and Christie&#039;s 1879/1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are listed as 15-jewel&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;while &lt;/ins&gt;Watches of Knightsbridge&#039;s 1599 and Antiquorum&#039;s 1883/1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are listed as 17-jewel&lt;/ins&gt;. Christie&#039;s says its movement was timed in six positions ([https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271]). &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The lots document both grades, but give no &lt;/ins&gt;date &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;for &lt;/ins&gt;a change between &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;them&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l60&quot;&gt;Line 60:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 60:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Dial map==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Dial map==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The covered &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;examples are described with &lt;/del&gt;Arabic numerals and subsidiary seconds. Antiquorum &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;notes &lt;/del&gt;a two-tone &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gold &lt;/del&gt;dial with geometric decoration&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; &lt;/del&gt;Christie&#039;s &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;describes a &lt;/del&gt;silver multi-tone &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dial&lt;/del&gt;. Watches of Knightsbridge &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;says its example&#039;s &lt;/del&gt;dial &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;was refinished, so that watch cannot establish an &lt;/del&gt;original finish.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The covered &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;watches have &lt;/ins&gt;Arabic numerals and subsidiary seconds. Antiquorum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;describes &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gold &lt;/ins&gt;two-tone dial with geometric decoration&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. &lt;/ins&gt;Christie&#039;s &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;calls its dial &lt;/ins&gt;silver &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and &lt;/ins&gt;multi-tone. Watches of Knightsbridge &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;reports a refinished &lt;/ins&gt;dial&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; the &lt;/ins&gt;original finish &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is unknown&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Ref 1599 dial.webp|thumb|right|240px|Dial and open cover on the Watches of Knightsbridge example, lot 29 (2025). Photo: Watches of Knightsbridge.]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Ref 1599 dial.webp|thumb|right|240px|Dial and open cover on the Watches of Knightsbridge example, lot 29 (2025). Photo: Watches of Knightsbridge.]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l66&quot;&gt;Line 66:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 66:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Case, bezel, crystal, and crown notes==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Case, bezel, crystal, and crown notes==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;describes &lt;/del&gt;a 9 ct gold outer case and steel inner case on its 1872-1599. Its 2004 ref. 1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;has a &lt;/del&gt;9K pink&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;-&lt;/del&gt;gold &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;case &lt;/del&gt;with wire lugs. Watches of Knightsbridge describes an 18K gold cover over stainless steel and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;reports matching &lt;/del&gt;inner and outer numbers. Christie&#039;s &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;records &lt;/del&gt;an 18K engine-turned outer case &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and &lt;/del&gt;a 40 mm length&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; its catalogue calls the &lt;/del&gt;inner case &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;“metal” &lt;/del&gt;([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 Antiquorum, lot 97]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum, lot 583]; [https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://www.christies.com/en/lot/lot-4785370 Christie&#039;s, lot 101]).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;records &lt;/ins&gt;a 9 ct gold outer case and steel inner case on its 1872-1599. Its 2004 ref. 1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is &lt;/ins&gt;9K pink gold with wire lugs. Watches of Knightsbridge describes an 18K gold cover over stainless steel and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;says the &lt;/ins&gt;inner and outer numbers &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;match&lt;/ins&gt;. Christie&#039;s &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gives &lt;/ins&gt;an 18K engine-turned outer case&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;a 40 mm length&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, and a “metal” &lt;/ins&gt;inner case ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 Antiquorum, lot 97]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum, lot 583]; [https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://www.christies.com/en/lot/lot-4785370 Christie&#039;s, lot 101]).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&amp;#039;s reports patent stamps for Britain, the United States, France, and Italy. The case lid carries a monogram and a star-and-crescent emblem.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&amp;#039;s reports patent stamps for Britain, the United States, France, and Italy. The case lid carries a monogram and a star-and-crescent emblem.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l81&quot;&gt;Line 81:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 81:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Open-face listing==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Open-face listing==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams calls its 2020 open-face 18K gold Prince ref. 1599. Dorotheum&#039;s 2017 open-face Prince has case number 1599 and movement T57744. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;photographs could &lt;/del&gt;show the same watch &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;at a repeat sale, but &lt;/del&gt;Bonhams masks its movement number and neither listing shows the caseback.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams calls its 2020 open-face 18K gold Prince ref. 1599. Dorotheum&#039;s 2017 open-face Prince has case number 1599 and movement T57744. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;two entries may &lt;/ins&gt;show the same watch&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; the case style and dial look similar. &lt;/ins&gt;Bonhams masks its movement number&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;and neither listing shows the caseback&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, so the match remains unconfirmed&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Historical market and auction record==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Historical market and auction record==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
	<entry>
		<id>https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13928&amp;oldid=prev</id>
		<title>Admin: Copy edit: clarify ref. 1599 catalogue evidence</title>
		<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13928&amp;oldid=prev"/>
		<updated>2026-10-28T11:01:54Z</updated>

		<summary type="html">&lt;p&gt;Copy edit: clarify ref. 1599 catalogue evidence&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:01, 28 October 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot;&gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/div&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/div&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Rolex auction catalogues describe &lt;/del&gt;covered Sporting Princes &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as 1599, sometimes paired &lt;/del&gt;with 1872, 1879 or 1883. Bonhams &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;also &lt;/del&gt;calls an open-face Prince ref. 1599; Dorotheum records 1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inside &lt;/del&gt;a similar &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;case&lt;/del&gt;. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;catalogues leave &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;relationship between &lt;/del&gt;these &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;numbers unclear&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Catalogues use ref. 1599 for &lt;/ins&gt;covered Sporting Princes &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and also pair it &lt;/ins&gt;with 1872, 1879 or 1883. Bonhams calls an open-face Prince ref. 1599; Dorotheum records &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;case no. &lt;/ins&gt;1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;on &lt;/ins&gt;a similar &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;watch&lt;/ins&gt;. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;records do not show whether Rolex used &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number for all &lt;/ins&gt;these &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;watches&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Core facts==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Core facts==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l42&quot;&gt;Line 42:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 42:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Where it sits in the line==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Where it sits in the line==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ref. 1599 is a rectangular Prince. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Alexander Barter&#039;s &lt;/del&gt;&#039;&#039;The Watch: A Twentieth-Century Style History&#039;&#039; (Prestel, 2019) describes the Sporting Prince and Sporting Princess as &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sliding-cover &lt;/del&gt;purse watches&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; his &lt;/del&gt;1931 example is signed Texina.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ref. 1599 is a rectangular Prince. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;In &lt;/ins&gt;&#039;&#039;The Watch: A Twentieth-Century Style History&#039;&#039; (Prestel, 2019)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, Alexander Barter &lt;/ins&gt;describes the Sporting Prince and Sporting Princess as purse watches &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;with sliding covers. His &lt;/ins&gt;1931 example is signed Texina.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Swiss patent CH 146038 A, filed &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;by Hans Wilsdorf &lt;/del&gt;on 26 December 1929 and published on 31 March 1931, shows &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a &lt;/del&gt;watch in a spring-loaded frame &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inside two case parts &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;slide and pivot&lt;/del&gt;. Patent CH 151577 A, filed on 17 March 1930 and published on 15 December 1931, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;adds &lt;/del&gt;detail &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;slide-and-hinge &lt;/del&gt;arrangement. Christie&#039;s and Antiquorum &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;catalogue their &lt;/del&gt;covered examples &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as Sporting Princes &lt;/del&gt;([https://www.christies.com/en/lot/lot-4785370 Christie&#039;s lot 101]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum lot 583]; [https://patents.google.com/patent/CH146038A/en CH 146038 A]; [https://patents.google.com/patent/CH151577A/en CH 151577 A]).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Hans Wilsdorf&#039;s &lt;/ins&gt;Swiss patent CH 146038 A, filed on 26 December 1929 and published on 31 March 1931, shows &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;two case parts that slide relative to one another. The &lt;/ins&gt;watch &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sits &lt;/ins&gt;in a spring-loaded frame that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pivots open&lt;/ins&gt;. Patent CH 151577 A, filed on 17 March 1930 and published on 15 December 1931, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gives further &lt;/ins&gt;detail &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;on &lt;/ins&gt;the arrangement. Christie&#039;s and Antiquorum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;use the name Sporting Prince for &lt;/ins&gt;covered examples ([https://www.christies.com/en/lot/lot-4785370 Christie&#039;s lot 101]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum lot 583]; [https://patents.google.com/patent/CH146038A/en CH 146038 A]; [https://patents.google.com/patent/CH151577A/en CH 151577 A]).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mikrolisk&amp;#039;s trademark index records Sporting Prince under Hans Wilsdorf / Rolex Watch Co. SA on 8 March 1930.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mikrolisk&amp;#039;s trademark index records Sporting Prince under Hans Wilsdorf / Rolex Watch Co. SA on 8 March 1930.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l50&quot;&gt;Line 50:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 50:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Production outline==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Production outline==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&#039;s &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dates &lt;/del&gt;its &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;combined &lt;/del&gt;1879/1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;watch to &lt;/del&gt;circa 1931 and reports a Glasgow import mark &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dated the same &lt;/del&gt;year ([https://www.christies.com/en/lot/lot-4785370 lot 101]). Antiquorum dates two 1883/1599 listings to 1932 and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a third &lt;/del&gt;to the 1930s. Their descriptions are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;so similar &lt;/del&gt;that the three sales may include &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;repeat listings of one &lt;/del&gt;watch ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-36-510 lot 510]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-74-138 lot 138]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 lot 271]). Antiquorum&#039;s 1994 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lot &lt;/del&gt;records a Bienne chronometry certificate dated 28 August 1935 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;on a watch catalogued as 1872-1599 &lt;/del&gt;([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 lot 97]). The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Glasgow mark and Bienne &lt;/del&gt;certificate &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;date individual records; neither establishes how long ref. 1599 was produced&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&#039;s &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimates &lt;/ins&gt;its 1879/1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;at &lt;/ins&gt;circa 1931 and reports a Glasgow import mark &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;from that &lt;/ins&gt;year ([https://www.christies.com/en/lot/lot-4785370 lot 101]). Antiquorum dates two 1883/1599 listings to 1932 and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;another &lt;/ins&gt;to the 1930s. Their descriptions are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;close enough &lt;/ins&gt;that the three sales may include &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the same &lt;/ins&gt;watch ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-36-510 lot 510]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-74-138 lot 138]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 lot 271]). Antiquorum&#039;s 1994 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;listing for ref. 1872-1599 &lt;/ins&gt;records a Bienne chronometry certificate dated 28 August 1935 ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 lot 97]). The certificate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dates the rating, not the watch or the reference&#039;s production span&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Movement notes==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Movement notes==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum&#039;s 1994 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lot 97, catalogued as &lt;/del&gt;1872-1599&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, lists &lt;/del&gt;a 7-line, 18-jewel Ultra Prima. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Its &lt;/del&gt;2004 ref. 1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lot lists a 7½-line, 15-jewel Extra Prima; &lt;/del&gt;Christie&#039;s 1879/1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;also has a 15-jewel Extra Prima timed &lt;/del&gt;in &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;six positions. &lt;/del&gt;Watches of Knightsbridge&#039;s ref. 1599 and Antiquorum&#039;s 1883/1599 listings &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;specify 17-jewel Extra Prima movements &lt;/del&gt;([https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271]). &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The lots &lt;/del&gt;show &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;these grades on individual watches but &lt;/del&gt;do not &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;establish when Rolex changed &lt;/del&gt;between &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;them&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum&#039;s 1994 1872-1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;has &lt;/ins&gt;a 7-line, 18-jewel Ultra Prima. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The Extra Prima appears in the other covered-watch records: 15 jewels in Antiquorum&#039;s &lt;/ins&gt;2004 ref. 1599 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and &lt;/ins&gt;Christie&#039;s 1879/1599&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, and 17 jewels &lt;/ins&gt;in Watches of Knightsbridge&#039;s ref. 1599 and Antiquorum&#039;s 1883/1599 listings&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Christie&#039;s says its movement was timed in six positions &lt;/ins&gt;([https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271]). &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;These catalogues &lt;/ins&gt;show &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;different examples; they &lt;/ins&gt;do not &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;date a change &lt;/ins&gt;between &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;grades&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l60&quot;&gt;Line 60:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 60:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Dial map==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Dial map==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The covered examples are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;catalogued &lt;/del&gt;with Arabic numerals and subsidiary seconds. Antiquorum &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;describes &lt;/del&gt;a two-tone gold dial with geometric &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;designs&lt;/del&gt;; Christie&#039;s describes a silver multi-tone dial. Watches of Knightsbridge &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;notes that &lt;/del&gt;its dial was refinished, so &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;it &lt;/del&gt;cannot establish an original &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dial &lt;/del&gt;finish.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The covered examples are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;described &lt;/ins&gt;with Arabic numerals and subsidiary seconds. Antiquorum &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;notes &lt;/ins&gt;a two-tone gold dial with geometric &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;decoration&lt;/ins&gt;; Christie&#039;s describes a silver multi-tone dial. Watches of Knightsbridge &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;says &lt;/ins&gt;its &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;example&#039;s &lt;/ins&gt;dial was refinished, so &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;that watch &lt;/ins&gt;cannot establish an original finish.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Ref 1599 dial.webp|thumb|right|240px|Dial and open cover on the Watches of Knightsbridge example, lot 29 (2025). Photo: Watches of Knightsbridge.]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Ref 1599 dial.webp|thumb|right|240px|Dial and open cover on the Watches of Knightsbridge example, lot 29 (2025). Photo: Watches of Knightsbridge.]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l66&quot;&gt;Line 66:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 66:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Case, bezel, crystal, and crown notes==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Case, bezel, crystal, and crown notes==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s 1872-1599 lot &lt;/del&gt;describes a 9 ct gold outer case and steel inner case. Its 2004 ref. 1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lot &lt;/del&gt;has a 9K pink-gold case &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and &lt;/del&gt;wire lugs. Watches of Knightsbridge describes an 18K &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;outer case, a &lt;/del&gt;stainless&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;-&lt;/del&gt;steel inner &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;case, &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;matching &lt;/del&gt;numbers. Christie&#039;s records an 18K engine-turned outer case&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, an inner metal case, &lt;/del&gt;and a 40 mm length ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 Antiquorum, lot 97]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum, lot 583]; [https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://www.christies.com/en/lot/lot-4785370 Christie&#039;s, lot 101]).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Antiquorum describes a 9 ct gold outer case and steel inner case &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;on its 1872-1599&lt;/ins&gt;. Its 2004 ref. 1599 has a 9K pink-gold case &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;with &lt;/ins&gt;wire lugs. Watches of Knightsbridge describes an 18K &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gold cover over &lt;/ins&gt;stainless steel &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and reports matching &lt;/ins&gt;inner and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;outer &lt;/ins&gt;numbers. Christie&#039;s records an 18K engine-turned outer case and a 40 mm length&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;; its catalogue calls the inner case “metal” &lt;/ins&gt;([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 Antiquorum, lot 97]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum, lot 583]; [https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://www.christies.com/en/lot/lot-4785370 Christie&#039;s, lot 101]).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&amp;#039;s reports patent stamps for Britain, the United States, France, and Italy. The case lid carries a monogram and a star-and-crescent emblem.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Christie&amp;#039;s reports patent stamps for Britain, the United States, France, and Italy. The case lid carries a monogram and a star-and-crescent emblem.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l81&quot;&gt;Line 81:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 81:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Open-face listing==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Open-face listing==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;catalogued an &lt;/del&gt;open-face 18K gold Prince &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as &lt;/del&gt;ref. 1599 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in 2020&lt;/del&gt;. Dorotheum&#039;s 2017 open-face Prince has case number 1599 and movement T57744. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;two &lt;/del&gt;photographs &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;suggest &lt;/del&gt;a repeat &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;offering&lt;/del&gt;, but Bonhams masks &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the &lt;/del&gt;movement number and neither listing shows the caseback.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Bonhams &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;calls its 2020 &lt;/ins&gt;open-face 18K gold Prince ref. 1599. Dorotheum&#039;s 2017 open-face Prince has case number 1599 and movement T57744. The photographs &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;could show the same watch at &lt;/ins&gt;a repeat &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sale&lt;/ins&gt;, but Bonhams masks &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;its &lt;/ins&gt;movement number and neither listing shows the caseback.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Historical market and auction record==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Historical market and auction record==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
	<entry>
		<id>https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13924&amp;oldid=prev</id>
		<title>Admin: Create researched Prince ref. 1599 record</title>
		<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:1599&amp;diff=13924&amp;oldid=prev"/>
		<updated>2026-10-28T10:53:41Z</updated>

		<summary type="html">&lt;p&gt;Create researched Prince ref. 1599 record&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{DISPLAYTITLE:Rolex Prince ref. 1599}}&lt;br /&gt;
{{#seo:&lt;br /&gt;
|title=Rolex Prince ref. 1599 {{!}} Rolexopedia&lt;br /&gt;
|description=Auction records list the covered Sporting Prince as 1599 and with paired case numbers. Bonhams also catalogued an open-face Prince as ref. 1599.&lt;br /&gt;
|keywords=Rolex Prince 1599, Sporting Prince, Rolex hunter case, Extra Prima&lt;br /&gt;
|image=Ref 1599 hero.webp&lt;br /&gt;
|image_alt=Rolex Sporting Prince with its protective cover open&lt;br /&gt;
|type=Article&lt;br /&gt;
|og_type=article&lt;br /&gt;
|robots=index,follow,max-image-preview:large&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;small&amp;gt;[[Reference:prince|Prince]] → &amp;#039;&amp;#039;&amp;#039;1599&amp;#039;&amp;#039;&amp;#039;&amp;lt;/small&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;div class=&amp;quot;rp-lead&amp;quot;&amp;gt;&lt;br /&gt;
[[File:Ref 1599 hero.webp|thumb|center|640px|alt=Rolex Sporting Prince with its protective cover open|Ref. 1599, Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.]]&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Rolex auction catalogues describe covered Sporting Princes as 1599, sometimes paired with 1872, 1879 or 1883. Bonhams also calls an open-face Prince ref. 1599; Dorotheum records 1599 inside a similar case. The catalogues leave the relationship between these numbers unclear.&lt;br /&gt;
&lt;br /&gt;
==Core facts==&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Detail !! Documented record&lt;br /&gt;
|-&lt;br /&gt;
| Reference notation&lt;br /&gt;
| Antiquorum and Watches of Knightsbridge catalogue covered Sporting Princes as 1599. Antiquorum also uses 1872-1599 and 1883/1599; Christie&amp;#039;s uses 1879/1599. Bonhams labels an open-face Prince as 1599, while Dorotheum records case no. 1599 on a similar watch&lt;br /&gt;
|-&lt;br /&gt;
| Family and branch&lt;br /&gt;
| Prince; usually catalogued as Sporting Prince with a protective hunter case&lt;br /&gt;
|-&lt;br /&gt;
| Movement&lt;br /&gt;
| Covered-case listings describe 15- or 17-jewel Extra Prima movements; Antiquorum&amp;#039;s 1872-1599 lot lists an 18-jewel Ultra Prima. Bonhams lists an 18-jewel manual movement for its open-face watch. No lot identifies a caliber number&lt;br /&gt;
|-&lt;br /&gt;
| Case&lt;br /&gt;
| Antiquorum&amp;#039;s 1872-1599 lot has a 9 ct gold outer case and steel inner case; its 2004 ref. 1599 is catalogued in 9K pink gold. Christie&amp;#039;s 1879/1599 and Watches of Knightsbridge&amp;#039;s 1599 are catalogued in 18K gold; the latter specifies a stainless-steel inner case, while Christie&amp;#039;s says only &amp;quot;metal inner case&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Dial&lt;br /&gt;
| Multi-tone or two-tone layouts with Arabic numerals and subsidiary seconds in covered-case records&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Where it sits in the line==&lt;br /&gt;
&lt;br /&gt;
Ref. 1599 is a rectangular Prince. Alexander Barter&amp;#039;s &amp;#039;&amp;#039;The Watch: A Twentieth-Century Style History&amp;#039;&amp;#039; (Prestel, 2019) describes the Sporting Prince and Sporting Princess as sliding-cover purse watches; his 1931 example is signed Texina.&lt;br /&gt;
&lt;br /&gt;
Swiss patent CH 146038 A, filed by Hans Wilsdorf on 26 December 1929 and published on 31 March 1931, shows a watch in a spring-loaded frame inside two case parts that slide and pivot. Patent CH 151577 A, filed on 17 March 1930 and published on 15 December 1931, adds detail to the slide-and-hinge arrangement. Christie&amp;#039;s and Antiquorum catalogue their covered examples as Sporting Princes ([https://www.christies.com/en/lot/lot-4785370 Christie&amp;#039;s lot 101]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum lot 583]; [https://patents.google.com/patent/CH146038A/en CH 146038 A]; [https://patents.google.com/patent/CH151577A/en CH 151577 A]).&lt;br /&gt;
&lt;br /&gt;
Mikrolisk&amp;#039;s trademark index records Sporting Prince under Hans Wilsdorf / Rolex Watch Co. SA on 8 March 1930.&lt;br /&gt;
&lt;br /&gt;
==Production outline==&lt;br /&gt;
&lt;br /&gt;
Christie&amp;#039;s dates its combined 1879/1599 watch to circa 1931 and reports a Glasgow import mark dated the same year ([https://www.christies.com/en/lot/lot-4785370 lot 101]). Antiquorum dates two 1883/1599 listings to 1932 and a third to the 1930s. Their descriptions are so similar that the three sales may include repeat listings of one watch ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-36-510 lot 510]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-74-138 lot 138]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 lot 271]). Antiquorum&amp;#039;s 1994 lot records a Bienne chronometry certificate dated 28 August 1935 on a watch catalogued as 1872-1599 ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 lot 97]). The Glasgow mark and Bienne certificate date individual records; neither establishes how long ref. 1599 was produced.&lt;br /&gt;
&lt;br /&gt;
==Movement notes==&lt;br /&gt;
&lt;br /&gt;
Antiquorum&amp;#039;s 1994 lot 97, catalogued as 1872-1599, lists a 7-line, 18-jewel Ultra Prima. Its 2004 ref. 1599 lot lists a 7½-line, 15-jewel Extra Prima; Christie&amp;#039;s 1879/1599 also has a 15-jewel Extra Prima timed in six positions. Watches of Knightsbridge&amp;#039;s ref. 1599 and Antiquorum&amp;#039;s 1883/1599 listings specify 17-jewel Extra Prima movements ([https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 Antiquorum, lot 271]). The lots show these grades on individual watches but do not establish when Rolex changed between them.&lt;br /&gt;
&lt;br /&gt;
Bonhams lists an 18-jewel manual movement in its open-face ref. 1599 listing ([https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ lot 35, 2020]). The catalogue masks its number. The [[Reference:Movements|Prince movement guide]] covers the Extra Prima and Ultra Prima grades named in these lots.&lt;br /&gt;
&lt;br /&gt;
==Dial map==&lt;br /&gt;
&lt;br /&gt;
The covered examples are catalogued with Arabic numerals and subsidiary seconds. Antiquorum describes a two-tone gold dial with geometric designs; Christie&amp;#039;s describes a silver multi-tone dial. Watches of Knightsbridge notes that its dial was refinished, so it cannot establish an original dial finish.&lt;br /&gt;
&lt;br /&gt;
[[File:Ref 1599 dial.webp|thumb|right|240px|Dial and open cover on the Watches of Knightsbridge example, lot 29 (2025). Photo: Watches of Knightsbridge.]]&lt;br /&gt;
&lt;br /&gt;
==Case, bezel, crystal, and crown notes==&lt;br /&gt;
&lt;br /&gt;
Antiquorum&amp;#039;s 1872-1599 lot describes a 9 ct gold outer case and steel inner case. Its 2004 ref. 1599 lot has a 9K pink-gold case and wire lugs. Watches of Knightsbridge describes an 18K outer case, a stainless-steel inner case, and matching numbers. Christie&amp;#039;s records an 18K engine-turned outer case, an inner metal case, and a 40 mm length ([https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 Antiquorum, lot 97]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 Antiquorum, lot 583]; [https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 Watches of Knightsbridge, lot 29]; [https://www.christies.com/en/lot/lot-4785370 Christie&amp;#039;s, lot 101]).&lt;br /&gt;
&lt;br /&gt;
Christie&amp;#039;s reports patent stamps for Britain, the United States, France, and Italy. The case lid carries a monogram and a star-and-crescent emblem.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery mode=&amp;quot;packed&amp;quot; heights=&amp;quot;180&amp;quot;&amp;gt;&lt;br /&gt;
File:Ref 1599 case interior.webp|Open hunter case and inner metal body. Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.&lt;br /&gt;
File:Ref 1599 case reverse.webp|Reverse of the outer case. Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Bracelets, clasps, and packaging==&lt;br /&gt;
&lt;br /&gt;
The Watches of Knightsbridge example is on a leather strap. Christie&amp;#039;s lists an 18K Rolex buckle with its watch.&lt;br /&gt;
&lt;br /&gt;
==Open-face listing==&lt;br /&gt;
&lt;br /&gt;
Bonhams catalogued an open-face 18K gold Prince as ref. 1599 in 2020. Dorotheum&amp;#039;s 2017 open-face Prince has case number 1599 and movement T57744. The two photographs suggest a repeat offering, but Bonhams masks the movement number and neither listing shows the caseback.&lt;br /&gt;
&lt;br /&gt;
==Historical market and auction record==&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Sale date !! House and lot !! Catalogue notation !! Record&lt;br /&gt;
|-&lt;br /&gt;
| 10 April 1994&lt;br /&gt;
| Antiquorum, lot 97&lt;br /&gt;
| 1872-1599&lt;br /&gt;
| 9 ct gold outer case, steel inner case; 18-jewel Ultra Prima; Bienne chronometry certificate dated 1935&lt;br /&gt;
|-&lt;br /&gt;
| 12 April 2003; 24 October 2004; 8 November 2015&lt;br /&gt;
| Antiquorum, lots 510, 138, and 271&lt;br /&gt;
| 1883/1599&lt;br /&gt;
| Sporting Prince with gold outer cover and steel inner body&lt;br /&gt;
|-&lt;br /&gt;
| 24 April 2004&lt;br /&gt;
| Antiquorum, lot 583&lt;br /&gt;
| 1599&lt;br /&gt;
| 9K pink-gold covered case; 7½-line, 15-jewel Extra Prima; 25 × 41 mm; catalogued to the 1930s&lt;br /&gt;
|-&lt;br /&gt;
| 12 October 2006&lt;br /&gt;
| Christie&amp;#039;s New York, lot 101&lt;br /&gt;
| 1879/1599&lt;br /&gt;
| 18K gold hunter case; 15-jewel Extra Prima; Glasgow import mark reported for 1931&lt;br /&gt;
|-&lt;br /&gt;
| 20 January 2017&lt;br /&gt;
| Dorotheum, lot 145-041277/0001&lt;br /&gt;
| Case no. 1599&lt;br /&gt;
| Open-face 750-gold Prince; movement T57744&lt;br /&gt;
|-&lt;br /&gt;
| 21 July 2020&lt;br /&gt;
| Bonhams, lot 35&lt;br /&gt;
| 1599 (catalogued as reference)&lt;br /&gt;
| Open-face 18K gold Prince; 18-jewel manual movement T57***&lt;br /&gt;
|-&lt;br /&gt;
| 6 December 2025&lt;br /&gt;
| Watches of Knightsbridge, lot 29&lt;br /&gt;
| 1599&lt;br /&gt;
| 18K gold and stainless-steel full-hunter case; 17-jewel Extra Prima; inner and outer numbers reported to match&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Gallery ==&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery mode=&amp;quot;packed&amp;quot; heights=&amp;quot;180&amp;quot;&amp;gt;&lt;br /&gt;
File:Ref 1599 hero.webp|Covered Sporting Prince, front view. Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.&lt;br /&gt;
File:Ref 1599 dial.webp|Dial and open cover. Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.&lt;br /&gt;
File:Ref 1599 case interior.webp|Interior of the protective case. Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.&lt;br /&gt;
File:Ref 1599 case reverse.webp|Reverse of the outer case. Watches of Knightsbridge, lot 29 (2025). Photo: Watches of Knightsbridge.&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Sources ==&lt;br /&gt;
&lt;br /&gt;
* [https://irp-cdn.multiscreensite.com/0b5fdf83/files/uploaded/1.0%20RolexBook-23Mar.pdf &amp;#039;&amp;#039;The Vintage Rolex Field Manual&amp;#039;&amp;#039; — Colin A. White, Morning Tundra]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-51-583 &amp;quot;Antiquorum, Exceptional Horological Sale, lot 583 — Sporting Prince ref. 1599&amp;quot;, Antiquorum, 2004-04-24]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-127-97 &amp;quot;Antiquorum, Important Watches, Wristwatches and Clocks, lot 97 — Prince Savonnette ref. 1872-1599&amp;quot;, Antiquorum, 1994-04-10]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-36-510 &amp;quot;Antiquorum, Collector&amp;#039;s Pocket Watches, Wristwatches, Clocks, lot 510 — Sporting Prince ref. 1883/1599&amp;quot;, Antiquorum, 2003-04-12]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-74-138 &amp;quot;Antiquorum, Timeless Beauty, lot 138 — Sporting Prince ref. 1883/1599&amp;quot;, Antiquorum, 2004-10-24]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1883-1599-lot-295-271 &amp;quot;Antiquorum, Important Modern &amp;amp; Vintage Timepieces, lot 271 — Sporting Prince ref. 1883/1599&amp;quot;, Antiquorum, 2015-11-08]&lt;br /&gt;
* [https://www.bonhams.com/auction/25955/lot/35/rolex-a-fine-18k-gold-manual-wind-rectangular-wristwatch-prince-ref-1599-circa-1930/ &amp;quot;Bonhams, Watches and Wristwatches, lot 35 — Prince ref. 1599&amp;quot;, Bonhams, 2020-07-21]&lt;br /&gt;
* [https://www.dorotheum.com/cz/l/823808/ &amp;quot;Dorotheum, Klenoty, lot 145-041277/0001 — Rolex Prince, case no. 1599&amp;quot;, Dorotheum, 2017-01-20]&lt;br /&gt;
* [https://www.christies.com/en/lot/lot-4785370 &amp;quot;Christie&amp;#039;s, Important Watches and Wristwatches, lot 101 — Sporting Prince ref. 1879/1599&amp;quot;, Christie&amp;#039;s, 2006-10-12]&lt;br /&gt;
* [https://auctions.watchesofknightsbridge.com/past-auctions/srwatc10068/lot-details/dbee78a9-2065-4330-8168-b3910171c714 &amp;quot;Watches of Knightsbridge, Modern, Vintage &amp;amp; Military Timepieces, lot 29 — Sporting Prince ref. 1599&amp;quot;, Watches of Knightsbridge, 2025-12-06]&lt;br /&gt;
* [https://patents.google.com/patent/CH146038A/en Hans Wilsdorf, &amp;quot;Swiss patent CH 146038 A — Timepiece&amp;quot;, Swiss patent publication, digitized by Google Patents, 1931-03-31]&lt;br /&gt;
* [https://patents.google.com/patent/CH151577A/en Hans Wilsdorf, &amp;quot;Swiss patent CH 151577 A — Timepiece, addition to CH 146038&amp;quot;, Swiss patent publication, digitized by Google Patents, 1931-12-15]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-1559-sporting-prince-retailed-by-alex-clark-lot-353-49 &amp;quot;Antiquorum Monaco, 19 July 2022, lot 49 — Sporting Prince ref. 1559&amp;quot;, Antiquorum, 2022-07-19]&lt;br /&gt;
* [https://www.watchnet.co.jp/en/item/view/3874 &amp;quot;Private Eyes / WatchNet, archived listing A-3143 — Sporting Prince ref. 1560 NS&amp;quot;, Private Eyes Co. / WatchNet]&lt;br /&gt;
* [https://static.booktopia.com.au/pdf/9783791385068-1.pdf &amp;#039;&amp;#039;The Watch: A Twentieth-Century Style History&amp;#039;&amp;#039; — Alexander Barter, Prestel, 2019]&lt;br /&gt;
* [https://mikrolisk.de/show.php?id=311&amp;amp;searchMode=exact&amp;amp;site=280&amp;amp;suchwort=A.M. &amp;quot;Mikrolisk horological trademark index — Sporting Prince&amp;quot;, Mikrolisk]&lt;br /&gt;
&lt;br /&gt;
[[Category:Prince]]&lt;/div&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
</feed>