Reference:Movements: Difference between revisions

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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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 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.