Reference:18348 - Revision history

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	<small>[[Reference:day-date\|Day-Date]] -> '''18348'''</small>		<small>[[Reference:day-date\|Day-Date]] › '''18348'''</small>

	The 18348 is the diamond-bezel Day-Date of the caliber-3155 era, the double-quickset successor to the caliber-3055 diamond [[Reference:18048\|18048]] and the gem-set sibling of the fluted [[Reference:18238\|18238]] and bark [[Reference:18248\|18248]]. A 36mm yellow-gold President with a factory diamond-set bezel, it ran from 1988 to about 2000 on the caliber 3155, which sets both the day and the date from the crown. The diamond bezel was a common catalogue option, so the 18348 is a jewellery-grade volume President that trades on metal, condition and dial, with the special-dial examples at the top.		The 18348 is the diamond-bezel Day-Date of the caliber-3155 era, the double-quickset successor to the caliber-3055 diamond [[Reference:18048\|18048]] and the gem-set sibling of the fluted [[Reference:18238\|18238]] and bark [[Reference:18248\|18248]]. A 36mm yellow-gold President with a factory diamond-set bezel, it ran from 1988 to about 2000 on the caliber 3155, which sets both the day and the date from the crown. The diamond bezel was a common catalogue option, so the 18348 is a jewellery-grade volume President that trades on metal, condition and dial, with the special-dial examples at the top.
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	==Core facts==		==Core facts==

	{\| class="wikitable"		{\| class="wikitable rp-facts"
	\|-		\|-
	! detail		! detail

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	[[Category:Day-Date]]		[[Category:Day-Date]]
	~~[[Category:Working Draft]]~~

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Text audit: voice, clarity, source links

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	<small>[[Reference:day-date\|Day-Date]] → '''18348'''</small>		<small>[[Reference:day-date\|Day-Date]] -> '''18348'''</small>

	The 18348 is the diamond-bezel Day-Date of the caliber-3155 era, the double-quickset successor to the caliber-3055 diamond [[Reference:18048\|18048]]~~. It is a yellow-gold President with a factory diamond~~-set ~~bezel and the caliber 3155 that sets both the day and the date from the crown, made from 1988 to about 2000. It is the diamond~~ sibling of the fluted [[Reference:18238\|18238]] and ~~the~~ bark [[Reference:18248\|18248]]~~, and the reference those two are most often confused~~ with~~: the 18348 is the~~ diamond-bezel ~~one~~, the ~~18248~~ the ~~bark~~. The diamond bezel was a common catalogue option, so the 18348 is a jewellery-grade volume President that trades on metal, condition and dial, with the special-dial examples at the top.		The 18348 is the diamond-bezel Day-Date of the caliber-3155 era, the double-quickset successor to the caliber-3055 diamond [[Reference:18048\|18048]] and the gem-set sibling of the fluted [[Reference:18238\|18238]] and bark [[Reference:18248\|18248]]. A 36mm yellow-gold President with a factory diamond-set bezel, it ran from 1988 to about 2000 on the caliber 3155, which sets both the day and the date from the crown. The diamond bezel was a common catalogue option, so the 18348 is a jewellery-grade volume President that trades on metal, condition and dial, with the special-dial examples at the top.

	[[File:Ref 18348 hero.webp\|thumb\|right\|260px\|alt=Yellow gold Rolex Day-Date 18348 diamond bezel serti dial\|Rolex Day-Date 18348 in yellow gold — the factory diamond bezel that defines the reference, here with a champagne serti dial.]]		[[File:Ref 18348 hero.webp\|thumb\|right\|260px\|alt=Yellow gold Rolex Day-Date 18348 diamond bezel serti dial\|Rolex Day-Date 18348 in yellow gold — the factory diamond bezel that defines the reference, here with a champagne serti dial.]]
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	==Where it sits in the line==		==Where it sits in the line==

	The 18348 is the diamond-bezel member of the caliber-3155 Day-Date generation. The generation splits by finish the way the caliber-3055 references did: the [[Reference:18238\|18238]] is the fluted volume reference, the [[Reference:18248\|18248]] carries the bark, and the 18348 carries the factory diamond bezel. The 18348 and the bark 18248 are routinely swapped in ~~the market, but the digit denotes the diamond bezel, and~~ the 18348 is the one ~~whose~~ stones ~~sit~~ around the dial ~~rather than as a~~ worked-gold texture. Above it sit the 18388 and 18389, which ~~add diamond-set~~ lugs and case and pavé dials~~, a step beyond the bezel-only 18348~~. In white gold the diamond reference is the 18349, frequently seen as a "Tridor" with a tri-colour President bracelet, and in platinum the 18346. ~~Everything behind~~ the bezel is 18238: the ~~same~~ case, caliber 3155, sapphire crystal and President bracelet~~. The diamonds are the only thing that separate the 18348 from the volume reference~~.		The 18348 is the diamond-bezel member of the caliber-3155 Day-Date generation. The generation splits by finish the way the caliber-3055 references did: the [[Reference:18238\|18238]] is the fluted volume reference, the [[Reference:18248\|18248]] carries the bark, and the 18348 carries the factory diamond bezel. The 18348 and the bark 18248 sit a single digit apart and are routinely swapped in listings; the 18348 is the one carrying stones around the dial, the 18248 the one carrying worked-gold texture. Above both sit the 18388 and 18389, which take the diamonds onto the lugs and case and usually pair them with pavé dials. In white gold the diamond reference is the 18349, frequently seen as a "Tridor" with a tri-colour President bracelet, and in platinum the 18346. Behind the bezel the 18348 is an 18238, down to the case, the caliber 3155, the sapphire crystal and the President bracelet.

	==Production outline==		==Production outline==

	The 18348 ran from 1988, when the caliber 3155 replaced the 3055 across the Day-Date line, until about 2000, when the 6-digit 118348 took over with the same movement. The diamond bezel was a standard catalogue option across the run, so the 18348 was made in reasonable numbers as the gem-set yellow-gold President of its decade. Across the run the only running change of note is the lume: early examples carry tritium, marked "T SWISS MADE T" at the foot of the dial, while the latest examples switch to Luminova and then Super-LumiNova near the 2000 handover. ~~No quartz, no~~ case ~~change~~, ~~no movement change inside~~ the ~~reference;~~ the ~~variety lives in~~ the ~~dial~~.		The 18348 ran from 1988, when the caliber 3155 replaced the 3055 across the Day-Date line, until about 2000, when the 6-digit 118348 took over with the same movement. The diamond bezel was a standard catalogue option across the run, so the 18348 was made in reasonable numbers as the gem-set yellow-gold President of its decade. Across the run the only running change of note is the lume: early examples carry tritium, marked "T SWISS MADE T" at the foot of the dial, while the latest examples switch to Luminova and then Super-LumiNova near the 2000 handover. Nothing else moved across the twelve years: the case, the caliber and the bracelet leave the run as they entered it.

	==Movement notes==		==Movement notes==

	The 18348 runs the caliber 3155, the double-quickset Day-Date movement: 31 jewels, 28,800 vph, a roughly 48-hour reserve and COSC certification, with both the day and the date set from the crown. The double quickset is the substantive advance over the caliber-3055 18048, whose movement quicksets only the date. The 3155 is the long-serving modern Day-Date caliber, shared with the fluted 18238 and the bark 18248 and carried forward unchanged into the 6-digit 118348~~. The bezel changes what is set into the gold, not the watch underneath~~. The [[Reference:Movements]] page holds the caliber lineage, and the [[Reference:18238\|18238]] entry covers the 3155 in detail.		The 18348 runs the caliber 3155, the double-quickset Day-Date movement: 31 jewels, 28,800 vph, a roughly 48-hour reserve and COSC certification, with both the day and the date set from the crown. The double quickset is the substantive advance over the caliber-3055 18048, whose movement quicksets only the date. The 3155 is the long-serving modern Day-Date caliber, shared with the fluted 18238 and the bark 18248 and carried forward unchanged into the 6-digit 118348. The [[Reference:Movements]] page holds the caliber lineage, and the [[Reference:18238\|18238]] entry covers the 3155 in detail.

	==Dial map==		==Dial map==

	The diamond bezel is the constant on the 18348; the dial is where the variety lives. The common configuration is a champagne or silvered dial with diamond hour markers, often with baguettes at six and nine. Beyond that the reference carries the full gem-set range of the period: string-diamond dials, mother-of-pearl, white and black Roman, full pavé, and serti dials that set coloured stones, emeralds, rubies or sapphires, into a diamond chapter ring. Stone dials such as the ferrite grounds of the 1990s appear as well. The deep dial taxonomy that spans the President line sits on the [[Reference:1803\|1803]] entry~~; on the 18348, as on a diamond Day-Date generally, the dial is what sets one example apart from the next~~.		The diamond bezel is the constant on the 18348; the dial is where the variety lives. The common configuration is a champagne or silvered dial with diamond hour markers, often with baguettes at six and nine. Beyond that the reference carries the full gem-set range of the period: string-diamond dials, mother-of-pearl, white and black Roman, full pavé, and serti dials that set coloured stones, emeralds, rubies or sapphires, into a diamond chapter ring. Stone dials such as the ferrite grounds of the 1990s appear as well. The deep dial taxonomy that spans the President line sits on the [[Reference:1803\|1803]] entry.

	==Case, bezel, crystal, and crown==		==Case, bezel, crystal, and crown==

	The case is the 36mm yellow-gold Oyster shared across the caliber-3155 Day-Date, with a sapphire crystal and Cyclops, a Twinlock screw-down crown and a screw-down caseback. The defining feature is the factory diamond-set bezel, a single row of round brilliants. The stone count is not consistently documented across the reference~~, and because the case is gold~~ and ~~the~~ bezel is straightforward to set, aftermarket diamond bezels and dials ~~are~~ common, the main authenticity question on the 18348~~. Attribution~~ rests on the quality and proportion of the setting and on Rolex paperwork. The diamond-set bracelet and diamond-set case upgrades that some examples carry push toward the higher 18388 and 18389 references.		The case is the 36mm yellow-gold Oyster shared across the caliber-3155 Day-Date, with a sapphire crystal and Cyclops, a Twinlock screw-down crown and a screw-down caseback. The defining feature is the factory diamond-set bezel, a single row of round brilliants. The stone count is not consistently documented across the reference. Gold cases and a bezel that is straightforward to set have made aftermarket diamond bezels and dials common, and that is the main authenticity question on the 18348; the call rests on the quality and proportion of the setting, and on Rolex paperwork. The diamond-set bracelet and diamond-set case upgrades that some examples carry push toward the higher 18388 and 18389 references.

	==Bracelets, end links, and clasps==		==Bracelets, end links, and clasps==

	The 18348 wears the President bracelet, reference 8385, with the concealed Crownclasp and the solid links of the 5-digit era. The gem-loaded examples add a pavé centre-link President, ~~the upgrade documented on the strongest auction results, which sets~~ diamonds down the length of the bracelet. As with any President, a clasp date code dates the bracelet, which may be older or newer than the head, and the cross-family detail sits on [[Reference:Bracelets]].		The 18348 wears the President bracelet, reference 8385, with the concealed Crownclasp and the solid links of the 5-digit era. The gem-loaded examples add a pavé centre-link President, with diamonds set down the length of the bracelet. As with any President, a clasp date code dates the bracelet, which may be older or newer than the head, and the cross-family detail sits on [[Reference:Bracelets]].

	==Special branches==		==Special branches==
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	===Serti and special dials===		===Serti and special dials===

	~~The~~ 18348~~'s variety, and most of its upside~~, ~~is in the dial. Serti dials~~ set ~~coloured stones~~ into a diamond chapter ring~~, emerald~~ and ~~ruby markers on champagne~~ grounds~~, while coral and other stone dials~~, mother-of-pearl and full pavé all appear on the diamond-bezel case~~. On a jewellery-grade reference like this the dial is what carries the result~~.		On the 18348 the serti configuration usually means emerald or ruby markers on a champagne ground, set into a diamond chapter ring. Coral and other hardstone grounds, mother-of-pearl and full pavé all appear on the same diamond-bezel case.

	===The gem-loaded examples===		===The gem-loaded examples===
	[[File:Ref 18348 pave.webp\|thumb\|right\|250px\|alt=Gem-loaded Rolex 18348 with pavé bracelet\|The gem-loaded configuration — diamond bezel, black diamond dial and a pavé centre-link President bracelet, the examples that reach the strongest results.]]		[[File:Ref 18348 pave.webp\|thumb\|right\|250px\|alt=Gem-loaded Rolex 18348 with pavé bracelet\|The gem-loaded configuration — diamond bezel, black diamond dial and a pavé centre-link President bracelet, the examples that reach the strongest results.]]

			The most heavily set 18348s pair the diamond bezel with a diamond dial and a pavé centre-link President bracelet. That configuration sits closest to the diamond-set-case 18388 and 18389 above it in the catalogue, and it is where the reference's strongest auction results come from.
	The most heavily set 18348s pair the diamond bezel with a diamond dial and a pavé centre-link President bracelet. ~~These are the examples that reach the strongest auction results and that sit~~ closest to the diamond-set-case 18388 and 18389 ~~references~~ above ~~them~~ in the catalogue.

	==Auction record==		==Auction record==

	The 18348 is a liquid, jewellery-grade volume reference, and where it does well the gem content drives the result. Antiquorum sold a black-diamond-dial example with a pavé centre-link bracelet in New York in 2016 for USD 33,125, well over its estimate and the strongest documented result for the reference. Antiquorum has also catalogued a champagne example with an emerald-marker serti dial in Geneva, and Sotheby's a blue sunburst diamond-index example dated to about 1989. ~~For a~~ standard yellow-gold diamond-bezel 18348 ~~the secondary market sits roughly~~ in the high-twenties to low-thirties of thousands of dollars, a clear step above the fluted 18238 for the gem content ~~but trading~~ on carats, condition and dial. The ~~special dials,~~ serti, stone and pavé, are what reach the upper end.		The 18348 is a liquid, jewellery-grade volume reference, and where it does well the gem content drives the result. Antiquorum sold a black-diamond-dial example with a pavé centre-link bracelet in New York in 2016 for USD 33,125, well over its estimate and the strongest documented result for the reference. Antiquorum has also catalogued a champagne example with an emerald-marker serti dial in Geneva, and Sotheby's a blue sunburst diamond-index example dated to about 1989. A standard yellow-gold diamond-bezel 18348 trades in the high twenties to low thirties of thousands of dollars, a clear step above the fluted 18238 for the gem content, though the result still turns on carats, condition and dial. The serti, stone and pavé dials are what reach the upper end.

	{\| class="wikitable"		{\| class="wikitable"
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	\| result not published		\| result not published
	\|}		\|}


	== Related references ==		== Related references ==

Admin: Style: canonical '== Sources ==' heading spacing per AGENTS.md

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	See also the [[Reference:day-date\|Day-Date family index]], [[Reference:Movements\|movement reference]], [[Reference:Bracelets\|bracelet & clasp guide]], and [[Reference:Serial-numbers\|serial numbers by year]].		See also the [[Reference:day-date\|Day-Date family index]], [[Reference:Movements\|movement reference]], [[Reference:Bracelets\|bracelet & clasp guide]], and [[Reference:Serial-numbers\|serial numbers by year]].

	==Sources==		== Sources ==

	* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra		* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra

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Admin: Auction record: name the Sotheby's Fine Watches lot 105 dial (blue sunburst, diamond-set indices, c.1989) so table, prose and Sources footer agree; replace 'published lot reference' placeholders with 'result not published'

2026-08-03T14:28:34Z

Auction record: name the Sotheby's Fine Watches lot 105 dial (blue sunburst, diamond-set indices, c.1989) so table, prose and Sources footer agree; replace 'published lot reference' placeholders with 'result not published'

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	==Auction record==		==Auction record==

	The 18348 is a liquid, jewellery-grade volume reference, and where it does well the gem content drives the result. Antiquorum sold a black-diamond-dial example with a pavé centre-link bracelet in New York in 2016 for USD 33,125, well over its estimate and the strongest documented result for the reference. Antiquorum has also catalogued a champagne example with an emerald-marker serti dial in Geneva, and Sotheby's a ~~yellow~~-~~gold~~ example dated to about 1989. For a standard yellow-gold diamond-bezel 18348 the secondary market sits roughly in the high-twenties to low-thirties of thousands of dollars, a clear step above the fluted 18238 for the gem content but trading on carats, condition and dial. The special dials, serti, stone and pavé, are what reach the upper end.		The 18348 is a liquid, jewellery-grade volume reference, and where it does well the gem content drives the result. Antiquorum sold a black-diamond-dial example with a pavé centre-link bracelet in New York in 2016 for USD 33,125, well over its estimate and the strongest documented result for the reference. Antiquorum has also catalogued a champagne example with an emerald-marker serti dial in Geneva, and Sotheby's a blue sunburst diamond-index example dated to about 1989. For a standard yellow-gold diamond-bezel 18348 the secondary market sits roughly in the high-twenties to low-thirties of thousands of dollars, a clear step above the fluted 18238 for the gem content but trading on carats, condition and dial. The special dials, serti, stone and pavé, are what reach the upper end.

	{\| class="wikitable"		{\| class="wikitable"
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	\| Antiquorum Geneva, lot 122		\| Antiquorum Geneva, lot 122
	\| champagne diamond-Roman / emerald-marker serti dial		\| champagne diamond-Roman / emerald-marker serti dial
	\| published ~~lot reference~~		\| result not published
	\|-		\|-
	\| 2025		\| 2025
	\| Sotheby's Fine Watches, lot 105		\| Sotheby's Fine Watches, lot 105
	\| ~~yellow gold and~~ diamond-set, c.1989		\| blue sunburst dial, diamond-set indices, c.1989
	\| published ~~lot reference~~		\| result not published
	\|}		\|}

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	\|title=Rolex Day-Date 18348 — The Caliber-3155 Diamond-Bezel President		\|title=Rolex Day-Date 18348 — The Caliber-3155 Diamond-Bezel President
	\|~~titlemode~~=~~replace~~		\|description=The Rolex 18348 is the yellow-gold factory-diamond-bezel Day-Date on caliber 3155 — double quickset, sapphire crystal, 1988-2000. The cal-3155 successor to the diamond 18048 and the diamond sibling of the fluted 18238 and bark 18248.
	\|keywords=Rolex 18348, Day-Date 18348, diamond bezel Day-Date, caliber 3155, double quickset, yellow gold President, serti dial, 18388		\|keywords=Rolex 18348, Day-Date 18348, diamond bezel Day-Date, caliber 3155, double quickset, yellow gold President, serti dial, 18388
	\|description=The Rolex 18348 is the yellow-gold factory-diamond-bezel Day-Date on caliber 3155 — double quickset, sapphire crystal, 1988-2000. The cal-3155 successor to the diamond 18048 and the diamond sibling of the fluted 18238 and bark 18248.
	\|image=Ref 18348 hero.webp		\|image=Ref 18348 hero.webp
			\|image_alt=Yellow gold Rolex Day-Date 18348 diamond bezel serti dial
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	<small>[[Reference:day-date\|Day-Date]] → '''18348'''</small>		<small>[[Reference:day-date\|Day-Date]] → '''18348'''</small>