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	<id>https://rolexopedia.net/index.php?action=history&amp;feed=atom&amp;title=Reference%3A2226</id>
	<title>Reference:2226 - Revision history</title>
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	<updated>2026-10-16T05:06:38Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://rolexopedia.net/index.php?title=Reference:2226&amp;diff=12423&amp;oldid=prev</id>
		<title>Admin: Clarify archived catalogue attribution</title>
		<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:2226&amp;diff=12423&amp;oldid=prev"/>
		<updated>2026-10-16T02:39:23Z</updated>

		<summary type="html">&lt;p&gt;Clarify archived catalogue attribution&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 02:39, 16 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-l59&quot;&gt;Line 59:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 59:&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;The catalogue dates run from Christie&amp;#039;s circa-1920 estimate for steel case 1004619 to Antiquorum&amp;#039;s circa-1940 estimate for steel case 1004623. Antiquorum dates gold case 1005651 and steel case 1004626 circa 1925. These are dates assigned to individual watches; they leave the reference&amp;#039;s production endpoints open.&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;The catalogue dates run from Christie&amp;#039;s circa-1920 estimate for steel case 1004619 to Antiquorum&amp;#039;s circa-1940 estimate for steel case 1004623. Antiquorum dates gold case 1005651 and steel case 1004626 circa 1925. These are dates assigned to individual watches; they leave the reference&amp;#039;s production endpoints open.&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;Collector Square preserves &lt;/del&gt;Tajan&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s &lt;/del&gt;2007 entry &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;for &lt;/del&gt;a gold ref. 2226 marked “No 105650” and dated circa 1935. Auctionata&#039;s 2014 entry gives case 1005650 and circa 1930. Their low-resolution images show the same Ronchi Milano signature and two-tone dial, which points to a repeat offering. The number discrepancy remains unresolved, so the entries count as one candidate watch.&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;A &lt;/ins&gt;Tajan 2007 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;catalogue &lt;/ins&gt;entry&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, preserved in an online archive, records &lt;/ins&gt;a gold ref. 2226 marked “No 105650” and dated circa 1935. Auctionata&#039;s 2014 entry gives case 1005650 and circa 1930. Their low-resolution images show the same Ronchi Milano signature and two-tone dial, which points to a repeat offering. The number discrepancy remains unresolved, so the entries count as one candidate watch.&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;{| class=&amp;quot;wikitable&amp;quot;&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;{| class=&amp;quot;wikitable&amp;quot;&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-l124&quot;&gt;Line 124:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 124:&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;| Tajan Paris, lot 39&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;| Tajan Paris, lot 39&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;div&gt;| “105650”&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;| “105650”&lt;/div&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;| Yellow gold, two-tone dial, Ronchi Milano signature; circa 1935; not sold. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Preserved in Collector Square&#039;s &lt;/del&gt;archive.&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;| Yellow gold, two-tone dial, Ronchi Milano signature; circa 1935; not sold. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The surviving record is an &lt;/ins&gt;archive &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;transcription&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;div&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;|-&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;div&gt;| 2011&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;| 2011&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;div&gt;| Antiquorum Geneva, lot 203&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;| Antiquorum Geneva, lot 203&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;div&gt;| 1004626&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;| 1004626&lt;/div&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;| Steel, 48.2 mm, retailer-signed C. Bucherer; circa 1925; 17 lignes and 17 jewels. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Preserved in Collector Square&#039;s &lt;/del&gt;archive.&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;| Steel, 48.2 mm, retailer-signed C. Bucherer; circa 1925; 17 lignes and 17 jewels. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The surviving record is an &lt;/ins&gt;archive &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;transcription&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;div&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;|-&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;div&gt;| 2014&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;| 2014&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:2226&amp;diff=12419&amp;oldid=prev</id>
		<title>Admin: Add researched Rolex ref. 2226 documentation and index it</title>
		<link rel="alternate" type="text/html" href="https://rolexopedia.net/index.php?title=Reference:2226&amp;diff=12419&amp;oldid=prev"/>
		<updated>2026-10-16T02:38:45Z</updated>

		<summary type="html">&lt;p&gt;Add researched Rolex ref. 2226 documentation and index it&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{DISPLAYTITLE:Rolex Chronograph 2226}}&lt;br /&gt;
{{#seo:&lt;br /&gt;
|title=Rolex Reference 2226 — Early Single-Button Chronograph &amp;amp;#124; Rolexopedia&lt;br /&gt;
|description=Documented Rolex ref. 2226 examples, their open-face cases, dial layouts, movement descriptions and conflicting catalogue dates.&lt;br /&gt;
|keywords=Rolex 2226, Rolex chronograph, monopusher, pocket chronograph, vintage Rolex&lt;br /&gt;
|image=Ref 2226 hero.webp&lt;br /&gt;
|image_alt=Yellow-gold Rolex ref. 2226 with a black sector dial and two chronograph registers&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:pre-daytona-chronographs|Pre-Daytona chronographs]] → &amp;#039;&amp;#039;&amp;#039;2226&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 2226 hero.webp|thumb|center|640px|alt=Yellow-gold Rolex 2226 open-face chronograph with a black sector dial|Case 1005651, Antiquorum Geneva 2023, lot 504. Photo: Antiquorum.]]&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Rolex ref. 2226 appears in surviving records as a large, open-face, single-button chronograph with two registers. Catalogued examples have steel or yellow-gold cases, silvered or black dials, and manual movements. Sale catalogues date individual watches from circa 1920 to circa 1940; the reference&amp;#039;s production dates remain unverified.&lt;br /&gt;
&lt;br /&gt;
Christie&amp;#039;s titled its 48 mm steel example a wristwatch; Antiquorum calls similar open-face examples pocket watches. The catalogues do not settle whether ref. 2226 was intended for the wrist or pocket.&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&lt;br /&gt;
| 2226&lt;br /&gt;
|-&lt;br /&gt;
| Type&lt;br /&gt;
| Manual, single-button chronograph; two registers&lt;br /&gt;
|-&lt;br /&gt;
| Dated examples&lt;br /&gt;
| Individual catalogue estimates run from circa 1920 to circa 1940; they do not set the reference&amp;#039;s production dates.&lt;br /&gt;
|-&lt;br /&gt;
| Case&lt;br /&gt;
| Round, open-face examples; snap-on backs are described in several records&lt;br /&gt;
|-&lt;br /&gt;
| Documented metals&lt;br /&gt;
| Stainless steel and yellow gold&lt;br /&gt;
|-&lt;br /&gt;
| Reported diameters&lt;br /&gt;
| 47–48.2 mm across catalogue records; these are example measurements, not a factory specification&lt;br /&gt;
|-&lt;br /&gt;
| Movement&lt;br /&gt;
| Manual lever movements; several catalogues report 17 lignes and 17 jewels. The movement number is not identified.&lt;br /&gt;
|-&lt;br /&gt;
| Dial&lt;br /&gt;
| Silvered and black examples with two registers and tachymeter or telemeter scales&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Where it sits in the line==&lt;br /&gt;
&lt;br /&gt;
The 2226 belongs with Rolex&amp;#039;s early single-button chronographs. Christie&amp;#039;s describes a crown-operated pusher, a 30-minute register and subsidiary seconds; the 2011 Antiquorum transcription records the same two-register layout. The surviving catalogues present it both as a wristwatch and as a pocket watch, so each label stays attached to its own lot.&lt;br /&gt;
&lt;br /&gt;
==Production outline==&lt;br /&gt;
&lt;br /&gt;
The catalogue dates run from Christie&amp;#039;s circa-1920 estimate for steel case 1004619 to Antiquorum&amp;#039;s circa-1940 estimate for steel case 1004623. Antiquorum dates gold case 1005651 and steel case 1004626 circa 1925. These are dates assigned to individual watches; they leave the reference&amp;#039;s production endpoints open.&lt;br /&gt;
&lt;br /&gt;
Collector Square preserves Tajan&amp;#039;s 2007 entry for a gold ref. 2226 marked “No 105650” and dated circa 1935. Auctionata&amp;#039;s 2014 entry gives case 1005650 and circa 1930. Their low-resolution images show the same Ronchi Milano signature and two-tone dial, which points to a repeat offering. The number discrepancy remains unresolved, so the entries count as one candidate watch.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Catalogue record !! Case or number !! Description and date&lt;br /&gt;
|-&lt;br /&gt;
| Christie&amp;#039;s, London 2000, lot 713&lt;br /&gt;
| 1004619&lt;br /&gt;
| Stainless steel, 48 mm; circa 1920. Christie&amp;#039;s calls it a wristwatch.&lt;br /&gt;
|-&lt;br /&gt;
| Antiquorum, Geneva 2011, lot 203&lt;br /&gt;
| 1004626&lt;br /&gt;
| Stainless steel, 48.2 mm; C. Bucherer retailer signature; circa 1925.&lt;br /&gt;
|-&lt;br /&gt;
| Antiquorum, Geneva 2023, lot 504&lt;br /&gt;
| 1005651&lt;br /&gt;
| 18-carat yellow gold, 48 mm; black sector dial; circa 1925.&lt;br /&gt;
|-&lt;br /&gt;
| Tajan, Paris 2007, lot 39; Auctionata 2014, lot 48&lt;br /&gt;
| “105650” / 1005650&lt;br /&gt;
| Yellow gold, two-tone silver dial signed Ronchi Milano; circa 1935 / circa 1930. Likely a repeat offering; the case number is unresolved.&lt;br /&gt;
|-&lt;br /&gt;
| Antiquorum, Geneva 2024, lot 10&lt;br /&gt;
| 1004623&lt;br /&gt;
| Stainless steel, 48 mm; silver-toned dial; circa 1940.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Movement notes==&lt;br /&gt;
&lt;br /&gt;
Antiquorum describes the 2023 and 2024 movements as 17-line, 17-jewel manual movements. Its 2011 record gives the same size and jewel count for case 1004626; Christie&amp;#039;s reports 17 jewels for case 1004619. For case 1004623, Antiquorum also lists a straight-line lever escapement, monometallic balance, Breguet spring and index regulator. The photographed 2023 movement bears a Rolex signature; the image shows no readable caliber number.&lt;br /&gt;
&lt;br /&gt;
[[File:Ref 2226 movement.webp|thumb|right|220px|Rolex-signed manual chronograph movement in case 1005651. Photo: Antiquorum, Geneva 2023, lot 504.]]&lt;br /&gt;
&lt;br /&gt;
==Dial map==&lt;br /&gt;
&lt;br /&gt;
The documented dials include a black sector dial on yellow-gold case 1005651 and pale or silvered dials on steel examples. Christie&amp;#039;s describes black Arabic numerals, an outer seconds scale and a blue tachymeter scale on case 1004619. The Tajan and Auctionata images show a telemeter scale on the two-tone Ronchi Milano dial. The C. Bucherer-retailer example has a two-tone brushed-silver dial with black Breguet numerals. These are catalogue-level examples; they do not define the full factory range or establish the originality of every dial.&lt;br /&gt;
&lt;br /&gt;
[[File:Ref 2226 dial.webp|thumb|right|220px|Black sector dial of case 1005651. Photo: Antiquorum, Geneva 2023, lot 504.]]&lt;br /&gt;
&lt;br /&gt;
==Case, bezel, crystal, and crown==&lt;br /&gt;
&lt;br /&gt;
The catalogued round open-face cases measure 47 to 48.2 mm. Antiquorum&amp;#039;s 2011 record describes a three-part case with a curved bezel and snap-on back; Christie&amp;#039;s and Antiquorum&amp;#039;s 2023 catalogue also specify snap-on backs. Christie&amp;#039;s places the single chronograph button in the crown. The catalogues reviewed here leave the crystal material and any case-construction change unspecified.&lt;br /&gt;
&lt;br /&gt;
Antiquorum&amp;#039;s 2024 steel watch is shown with a chain, listed as an accessory to that lot. The catalogue does not describe it as original delivery.&lt;br /&gt;
&lt;br /&gt;
[[File:Ref 2226 steel example.webp|thumb|right|220px|Steel ref. 2226, case 1004623. The attached chain is a catalogue-listed accessory. Photo: Antiquorum, Geneva 2024, lot 10.]]&lt;br /&gt;
&lt;br /&gt;
==Bracelet, clasp, and packaging==&lt;br /&gt;
&lt;br /&gt;
The catalogued examples are open-face watches; Antiquorum lists a chain with its 2024 steel example. The reviewed records give no standard bracelet, clasp or box fitment for ref. 2226.&lt;br /&gt;
&lt;br /&gt;
==Auction record==&lt;br /&gt;
&lt;br /&gt;
Tajan&amp;#039;s “105650” and Auctionata&amp;#039;s 1005650 may describe the same gold watch, so they appear as one candidate rather than two confirmed examples.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Date !! House and lot !! Case or number !! Catalogue description&lt;br /&gt;
|-&lt;br /&gt;
| 2000&lt;br /&gt;
| Christie&amp;#039;s London, lot 713&lt;br /&gt;
| 1004619&lt;br /&gt;
| Steel, 48 mm; circa 1920; 17 jewels.&lt;br /&gt;
|-&lt;br /&gt;
| 2007&lt;br /&gt;
| Tajan Paris, lot 39&lt;br /&gt;
| “105650”&lt;br /&gt;
| Yellow gold, two-tone dial, Ronchi Milano signature; circa 1935; not sold. Preserved in Collector Square&amp;#039;s archive.&lt;br /&gt;
|-&lt;br /&gt;
| 2011&lt;br /&gt;
| Antiquorum Geneva, lot 203&lt;br /&gt;
| 1004626&lt;br /&gt;
| Steel, 48.2 mm, retailer-signed C. Bucherer; circa 1925; 17 lignes and 17 jewels. Preserved in Collector Square&amp;#039;s archive.&lt;br /&gt;
|-&lt;br /&gt;
| 2014&lt;br /&gt;
| Auctionata / ISA, lot 48&lt;br /&gt;
| 1005650&lt;br /&gt;
| Yellow gold, 47 mm, silvered dial signed Ronchi Milano; circa 1930; 17 lignes and 17 jewels. The lot did not sell.&lt;br /&gt;
|-&lt;br /&gt;
| 2023&lt;br /&gt;
| Antiquorum Geneva, lot 504&lt;br /&gt;
| 1005651&lt;br /&gt;
| Yellow gold, black sector dial, 48 mm; circa 1925; 17 lignes and 17 jewels.&lt;br /&gt;
|-&lt;br /&gt;
| 2024&lt;br /&gt;
| Antiquorum Geneva, lot 10&lt;br /&gt;
| 1004623&lt;br /&gt;
| Steel, silver-toned dial, 48 mm; circa 1940; 17 lignes and 17 jewels.&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 2226 hero.webp|Yellow-gold case 1005651, Antiquorum 2023&lt;br /&gt;
File:Ref 2226 dial.webp|Black sector dial, case 1005651, Antiquorum 2023&lt;br /&gt;
File:Ref 2226 movement.webp|Movement in case 1005651, Antiquorum 2023&lt;br /&gt;
File:Ref 2226 steel example.webp|Steel case 1004623 with listed chain, Antiquorum 2024&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Sources ==&lt;br /&gt;
&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-2226-lot-364-504 &amp;quot;Rolex ref. 2226, case 1005651, Antiquorum Geneva 2023 lot 504&amp;quot;, Antiquorum, 2023-11-05]&lt;br /&gt;
* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-2226-lot-372-10 &amp;quot;Rolex ref. 2226, case 1004623, Antiquorum Geneva 2024 lot 10&amp;quot;, Antiquorum, 2024-11-09]&lt;br /&gt;
* [https://www.christies.com/en/lot/lot-1817518 &amp;quot;Rolex ref. 2226, case 1004619, Christie&amp;#039;s London 2000 lot 713&amp;quot;, Christie&amp;#039;s, 2000-06-12]&lt;br /&gt;
* [https://www.collectorsquare.com/en/watches/rolex/chronographe-pocket-watch/ref-rolex-2226/lpi &amp;quot;Antiquorum Geneva 2011 lot 203, case 1004626 — Collector Square archive&amp;quot;, Collector Square, reproducing Antiquorum, 2011-05-15]&lt;br /&gt;
* [https://www.collectorsquare.com/en/watches/rolex/chronographe-pocket-watch/ref-rolex-2226/lpi &amp;quot;Tajan Paris 2007 lot 39, ref. 2226 — Collector Square archive&amp;quot;, Collector Square, reproducing a Tajan catalogue record, 2007-12-10]&lt;br /&gt;
* [https://www.icollector.com/Rolex-Chronograph-Pocket-Watch-Ref-2226-Switzerland-C-1930_i20551151 &amp;quot;Rolex ref. 2226, case 1005650, Auctionata 2014 lot 48 via iCollector&amp;quot;, ISA Auctionata / iCollector, 2014-09-30]&lt;br /&gt;
&lt;br /&gt;
[[Category:Pre-Daytona-Chronographs]]&lt;/div&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
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