Reference:Movements: Difference between revisions

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Ref. [[Reference:2021|2021]] is a pre-Oyster monopusher. Published descriptions give movement sizes from 13 to 16½ lignes; Uhrenkosmos names a Valjoux VZ in one early monopusher, while auction catalogues describe different executions. The available records do not support a reference-wide caliber assignment. Keep these descriptions separate from the Cal. 13 entry below. [https://www.uhrenkosmos.com/rolex-daytona-seine-technik-und-geschichte/ Uhrenkosmos, early monopusher movement] [https://www.phillips.com/detail/rolex/115419 Phillips, case 12'010] [https://www.cambiaste.com/it/asta-0795/rolex---rarissimo-cronografo-due-contatori-da-polso-monopulsante-in-ac-270066 Cambi, steel case 14xxx]

Auction records describe ref. [[Reference:2303|2303]] with 17-jewel lever movements; several Antiquorum lots measure them at 10½ lignes. Christie’s records a case-band pusher on one example, while other catalogues describe crown-operated monopushers. The lot descriptions leave caliber and maker unnamed, so a Valjoux 23 / Cal. 13 assignment would go beyond them. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-137 Antiquorum, case 17890] [https://www.christies.com/en/lot/lot-4796029 Christie’s, case 022310]

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Auction catalogues describe compatible 10- to 10½-ligne manual movements in [[Reference:2765|2765]], [[Reference:2595|2595]] and [[Reference:3009|3009]], but none of the surfaced records shows a Cal. 700 stamp. All three reference pages therefore treat the assignment as plausible rather than confirmed. The eight catalogue entries for [[Reference:1873|1873]] identify manual movements with 15–18 jewels and Extra Prima or Ultra Prima grades; the entries give no caliber designation.

Christie’s catalogues identify 18-jewel Ultra Prima chronometers timed to six positions in ref. [[Reference:2942|2942]] examples. Waecce describes the photographed movement as a 10½-line Hunter; these details support an Ultra Prima listing without a numbered-caliber assignment. [https://www.christies.com/en/lot/lot-4211234 Christie’s, case 30,125] [https://www.christies.com/en/lot/lot-1817520 Christie’s, 2000 lot 715] [https://www.waecce.com/products/rare-early-rolex-chronometre-scientific-wristwatch-ref-2942-c-1937 Waecce Watches]

Two Antiquorum catalogues from 1989 describe ref. [[Reference:3003|3003]] and [[Reference:3004|3004]] movements as 10-line, 15- and 17-jewel examples respectively. Neither entry names a caliber. These lot descriptions do not confirm Cal. 700 or 710 fitment in either reference.

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Cal. 3055 powered refs. 18038, 18039, 18048, 18049, 18078, 18079 and early 18238 in the 1977–1988 generation. It introduced quickset for the date, while the day still advanced through the motion of the hands. The balance cock provides the usual visual distinction from Cal. 3155, which uses a full transversal bridge. Common references give a height of 6.3mm, but Rolex's parts diagram specifies 7.11mm.

Cal. 3055 powered refs. 18038, 18039, 18048, 18049, 18078, 18079, [[Reference:18108|18108]] and early 18238 in the 1977–1988 generation. It introduced quickset for the date, while the day still advanced through the motion of the hands. The balance cock provides the usual visual distinction from Cal. 3155, which uses a full transversal bridge. Common references give a height of 6.3mm, but Rolex's parts diagram specifies 7.11mm.

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 Ref. [[Reference:2021|2021]] is a pre-Oyster monopusher. Published descriptions give movement sizes from 13 to 16½ lignes; Uhrenkosmos names a Valjoux VZ in one early monopusher, while auction catalogues describe different executions. The available records do not support a reference-wide caliber assignment. Keep these descriptions separate from the Cal. 13 entry below. [https://www.uhrenkosmos.com/rolex-daytona-seine-technik-und-geschichte/ Uhrenkosmos, early monopusher movement] [https://www.phillips.com/detail/rolex/115419 Phillips, case 12'010] [https://www.cambiaste.com/it/asta-0795/rolex---rarissimo-cronografo-due-contatori-da-polso-monopulsante-in-ac-270066 Cambi, steel case 14xxx]
+Auction records describe ref. [[Reference:2303|2303]] with 17-jewel lever movements; several Antiquorum lots measure them at 10½ lignes. Christie’s records a case-band pusher on one example, while other catalogues describe crown-operated monopushers. The lot descriptions leave caliber and maker unnamed, so a Valjoux 23 / Cal. 13 assignment would go beyond them. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-137 Antiquorum, case 17890] [https://www.christies.com/en/lot/lot-4796029 Christie’s, case 022310]
 <span id="cal-13"></span>
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 Auction catalogues describe compatible 10- to 10½-ligne manual movements in [[Reference:2765|2765]], [[Reference:2595|2595]] and [[Reference:3009|3009]], but none of the surfaced records shows a Cal. 700 stamp. All three reference pages therefore treat the assignment as plausible rather than confirmed. The eight catalogue entries for [[Reference:1873|1873]] identify manual movements with 15–18 jewels and Extra Prima or Ultra Prima grades; the entries give no caliber designation.
+Christie’s catalogues identify 18-jewel Ultra Prima chronometers timed to six positions in ref. [[Reference:2942|2942]] examples. Waecce describes the photographed movement as a 10½-line Hunter; these details support an Ultra Prima listing without a numbered-caliber assignment. [https://www.christies.com/en/lot/lot-4211234 Christie’s, case 30,125] [https://www.christies.com/en/lot/lot-1817520 Christie’s, 2000 lot 715] [https://www.waecce.com/products/rare-early-rolex-chronometre-scientific-wristwatch-ref-2942-c-1937 Waecce Watches]
 Two Antiquorum catalogues from 1989 describe ref. [[Reference:3003|3003]] and [[Reference:3004|3004]] movements as 10-line, 15- and 17-jewel examples respectively. Neither entry names a caliber. These lot descriptions do not confirm Cal. 700 or 710 fitment in either reference.
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-Cal. 3055 powered refs. 18038, 18039, 18048, 18049, 18078, 18079 and early 18238 in the 1977–1988 generation. It introduced quickset for the date, while the day still advanced through the motion of the hands. The balance cock provides the usual visual distinction from Cal. 3155, which uses a full transversal bridge. Common references give a height of 6.3mm, but Rolex's parts diagram specifies 7.11mm.
+Cal. 3055 powered refs. 18038, 18039, 18048, 18049, 18078, 18079, [[Reference:18108|18108]] and early 18238 in the 1977–1988 generation. It introduced quickset for the date, while the day still advanced through the motion of the hands. The balance cock provides the usual visual distinction from Cal. 3155, which uses a full transversal bridge. Common references give a height of 6.3mm, but Rolex's parts diagram specifies 7.11mm.
 <span id="cal-3155"></span>