Reference:Movements: Difference between revisions

(One intermediate revision by the same user not shown)

Line 373:

The rotor is a unidirectional "Perpetual" type that turns through 360 degrees without bumpers or buffers. It is engraved "ROLEX PERPETUAL / CHRONOMETER / SWISS MADE / PATENTED / SUPER-BALANCE," while the three-screw, 18mm cover plate reads "VIS TIRETTE / PATENTED / TRIGGER SCREW." Cal. 620 powered early Bubblebacks. Rolex dates the introduction of its Perpetual rotor to 1931, but that historical account does not name the caliber. Cal. 630 and the related 635 and 645 developed from the same architecture.

~~Reference~~ [[Reference:3134|3134]] ~~has~~ both subsidiary- and centre-seconds ~~examples~~, ~~but its published catalogues do not name~~ a caliber. ~~Do not assign a~~ 620/635 or 630/645 ~~to a particular watch from its seconds layout alone; confirm the movement marking~~. See the reference article for ~~the~~ lot-level evidence.

Published records for [[Reference:3134|3134]] show both subsidiary- and centre-seconds layouts; identify the caliber from its movement marking. Antiquorum’s 1995 Milan lot gives 9½ lignes; Antiquorum’s 1992 lot and Exclusive Timepieces lot 227 give 9¾. Klöter describes lot 443’s anchor movement as intact, without a caliber or winding type. Seconds layout alone cannot distinguish Cal. 620 from 635 or Cal. 630 from 645. See the [https://www.kloeter-auktionen.de/Katalog_185.pdf Klöter catalogue] and reference article for lot-level evidence.

Line 533:

|}

Unlike the Aegler-built 10½-ligne Hunter family above, Cal. 59 is a bought-in movement: David Boettcher's research on Oyster Watch Co. identifies it as a rebadged Fontainemelon FHF 30 ébauche, the same base Rolex carried over to Tudor as its own Cal. 59 after Tudor's 1946 incorporation. Four auction-catalogued [[Reference:3478|3478]] watches, three from Bonhams and one from Antiquorum, name Cal. 59 directly. Two ref. [[Reference:3136|3136]] lots also identify it: [https://jewelry.ha.com/itm/timepieces/rare-oyster-junior-sport-by-rolex-retailed-by-beyer-stainless-steel-manual-wind-ref-3136-circa-1940/a/5408-54065.s Heritage says the FHF 30 in case 105063 was later called Rolex Cal. 59], and [https://www.waddingtons.ca/auction/wrist-pocket-watches-dec-12-2024/gallery/lot/85/ Waddington's names Cal. 59 for case 147396]. These descriptions apply to those auction lots and do not establish universal fitment in ref. 3136. The Cal. 700/710 assignments below remain family-level matches rather than photographed or catalogued stamps.

Unlike the Aegler-built 10½-ligne Hunter family above, Cal. 59 is a bought-in movement: David Boettcher's research on Oyster Watch Co. identifies it as a rebadged Fontainemelon FHF 30 ébauche, the same base Rolex carried over to Tudor as its own Cal. 59 after Tudor's 1946 incorporation. Four auction-catalogued [[Reference:3478|3478]] watches, three from Bonhams and one from Antiquorum, name Cal. 59 directly. Antiquorum names it on one [[Reference:3121|3121]] Grenfell (case 43,475, 17 jewels). Its structured year field says circa 1938, while the notes call it a 1940s watch and attribute 1938 to the caseback. That is a lot-specific attribution, not evidence that every 3121 used Cal. 59. Two ref. [[Reference:3136|3136]] lots also identify it: [https://jewelry.ha.com/itm/timepieces/rare-oyster-junior-sport-by-rolex-retailed-by-beyer-stainless-steel-manual-wind-ref-3136-circa-1940/a/5408-54065.s Heritage says the FHF 30 in case 105063 was later called Rolex Cal. 59], and [https://www.waddingtons.ca/auction/wrist-pocket-watches-dec-12-2024/gallery/lot/85/ Waddington's names Cal. 59 for case 147396]. These descriptions apply to those auction lots and do not establish universal fitment in ref. 3136. The Cal. 700/710 assignments below remain family-level matches rather than photographed or catalogued stamps.

Jewel count splits 15 and 17 across the four directly-named 3478 watches; the cited 3136 lots give 15 jewels. The 3478 sample does not track cleanly with any other documented variable. [[Reference:2784|2784]] carries the same family attribution, but only at the family level: no auction catalogue names Cal. 59 outright for that reference, and the one movement image tied to a visibly stamped 2784 case has a Tudor-signed bridge that may be a later replacement.

Line 2,970:

* [https://www.tapatalk.com/groups/vintagerolexforum/history-of-1530-movement-t23616.html Vintage Rolex Forum — History of the 1530 movement] (introduction c.1957, butterfly rotor, chronometer status)

* [https://www.watchrepairtalk.com/topic/28412-rolex-3135-510-drive-wheel-for-ratchet-appears-to-be-worn-not-winding-watch-enough/ Watch Repair Talk — Rolex 3135-510 ratchet drive wheel wear]

* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-3121-oyster-grenfell-lot-376-219 Antiquorum Geneva, 3 April 2025, lot 219]: ref. 3121 Oyster Grenfell, case 43,475, circa 1938, Cal. 59, 17 jewels.

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

@@ Line 373: / Line 373: @@
 The rotor is a unidirectional "Perpetual" type that turns through 360 degrees without bumpers or buffers. It is engraved "ROLEX PERPETUAL / CHRONOMETER / SWISS MADE / PATENTED / SUPER-BALANCE," while the three-screw, 18mm cover plate reads "VIS TIRETTE / PATENTED / TRIGGER SCREW." Cal. 620 powered early Bubblebacks. Rolex dates the introduction of its Perpetual rotor to 1931, but that historical account does not name the caliber. Cal. 630 and the related 635 and 645 developed from the same architecture.
-Reference [[Reference:3134|3134]] has both subsidiary- and centre-seconds examples, but its published catalogues do not name a caliber. Do not assign a 620/635 or 630/645 to a particular watch from its seconds layout alone; confirm the movement marking. See the reference article for the lot-level evidence.
+Published records for [[Reference:3134|3134]] show both subsidiary- and centre-seconds layouts; identify the caliber from its movement marking. Antiquorum’s 1995 Milan lot gives 9½ lignes; Antiquorum’s 1992 lot and Exclusive Timepieces lot 227 give 9¾. Klöter describes lot 443’s anchor movement as intact, without a caliber or winding type. Seconds layout alone cannot distinguish Cal. 620 from 635 or Cal. 630 from 645. See the [https://www.kloeter-auktionen.de/Katalog_185.pdf Klöter catalogue] and reference article for lot-level evidence.
 <span id="cal-630"></span>
@@ Line 533: / Line 533: @@
 |}
-Unlike the Aegler-built 10½-ligne Hunter family above, Cal. 59 is a bought-in movement: David Boettcher's research on Oyster Watch Co. identifies it as a rebadged Fontainemelon FHF 30 ébauche, the same base Rolex carried over to Tudor as its own Cal. 59 after Tudor's 1946 incorporation. Four auction-catalogued [[Reference:3478|3478]] watches, three from Bonhams and one from Antiquorum, name Cal. 59 directly. Two ref. [[Reference:3136|3136]] lots also identify it: [https://jewelry.ha.com/itm/timepieces/rare-oyster-junior-sport-by-rolex-retailed-by-beyer-stainless-steel-manual-wind-ref-3136-circa-1940/a/5408-54065.s Heritage says the FHF 30 in case 105063 was later called Rolex Cal. 59], and [https://www.waddingtons.ca/auction/wrist-pocket-watches-dec-12-2024/gallery/lot/85/ Waddington's names Cal. 59 for case 147396]. These descriptions apply to those auction lots and do not establish universal fitment in ref. 3136. The Cal. 700/710 assignments below remain family-level matches rather than photographed or catalogued stamps.
+Unlike the Aegler-built 10½-ligne Hunter family above, Cal. 59 is a bought-in movement: David Boettcher's research on Oyster Watch Co. identifies it as a rebadged Fontainemelon FHF 30 ébauche, the same base Rolex carried over to Tudor as its own Cal. 59 after Tudor's 1946 incorporation. Four auction-catalogued [[Reference:3478|3478]] watches, three from Bonhams and one from Antiquorum, name Cal. 59 directly. Antiquorum names it on one [[Reference:3121|3121]] Grenfell (case 43,475, 17 jewels). Its structured year field says circa 1938, while the notes call it a 1940s watch and attribute 1938 to the caseback. That is a lot-specific attribution, not evidence that every 3121 used Cal. 59. Two ref. [[Reference:3136|3136]] lots also identify it: [https://jewelry.ha.com/itm/timepieces/rare-oyster-junior-sport-by-rolex-retailed-by-beyer-stainless-steel-manual-wind-ref-3136-circa-1940/a/5408-54065.s Heritage says the FHF 30 in case 105063 was later called Rolex Cal. 59], and [https://www.waddingtons.ca/auction/wrist-pocket-watches-dec-12-2024/gallery/lot/85/ Waddington's names Cal. 59 for case 147396]. These descriptions apply to those auction lots and do not establish universal fitment in ref. 3136. The Cal. 700/710 assignments below remain family-level matches rather than photographed or catalogued stamps.
 Jewel count splits 15 and 17 across the four directly-named 3478 watches; the cited 3136 lots give 15 jewels. The 3478 sample does not track cleanly with any other documented variable. [[Reference:2784|2784]] carries the same family attribution, but only at the family level: no auction catalogue names Cal. 59 outright for that reference, and the one movement image tied to a visibly stamped 2784 case has a Tudor-signed bridge that may be a later replacement.
@@ Line 2,970: / Line 2,970: @@
 * [https://www.tapatalk.com/groups/vintagerolexforum/history-of-1530-movement-t23616.html Vintage Rolex Forum — History of the 1530 movement] (introduction c.1957, butterfly rotor, chronometer status)
 * [https://www.watchrepairtalk.com/topic/28412-rolex-3135-510-drive-wheel-for-ratchet-appears-to-be-worn-not-winding-watch-enough/ Watch Repair Talk — Rolex 3135-510 ratchet drive wheel wear]
+* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-3121-oyster-grenfell-lot-376-219 Antiquorum Geneva, 3 April 2025, lot 219]: ref. 3121 Oyster Grenfell, case 43,475, circa 1938, Cal. 59, 17 jewels.
 * ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra