Reference:3599: Difference between revisions

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==Movement notes==

Auction catalogues place the 3599 in Rolex's early Perpetual movement family. Antiquorum's Mondani Collection watch has subsidiary seconds and is catalogued as Cal. 635.

Auction catalogues place the 3599 in Rolex's early Perpetual movement family. Antiquorum's Mondani Collection watch has subsidiary seconds and is catalogued as Cal. 635. Antiquorum describes it as a 9¾-ligne, 19-jewel movement; Ranfft lists Cal. 635 as 11.5 lignes, 17 jewels, with a 1950 launch. Ranfft classifies it as an automatic calibre with subsidiary seconds. The technical figures and date differ between these sources, so each remains attached to its catalogue.

Christie's case 152894 has centre seconds and is also catalogued as Cal. 635. ~~The~~ public entry gives the caliber but ~~has~~ no movement photograph; the identification remains unverified. Christie's case 152901, with subsidiary seconds, is listed with a 9¾-ligne movement and 17 jewels. Other auction descriptions give ligne sizes such as 9¾ and 10½ without naming a caliber.

Christie's case 152894 has centre seconds and is also catalogued as Cal. 635. Ranfft classifies 635 as a subsidiary-seconds calibre. Christie's public entry gives the caliber but shows no movement photograph, so the watch's movement identification remains unverified. Christie's case 152901, with subsidiary seconds, is listed with a 9¾-ligne movement and 17 jewels. Other auction descriptions give ligne sizes such as 9¾ and 10½ without naming a caliber.

Auction descriptions record both 17- and 19-jewel movements. Seventeen-jewel examples include cases 52082, 97031 and 275254; nineteen-jewel descriptions include case 45032 and Christie's case 152894. The records show no clear sequence by date or case number. They describe lever escapements, monometallic Super-Balance assemblies, Breguet hairsprings and, on some examples, fausses côtes decoration.

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* [https://www.phillips.com/detail/rolex/CH080216/76 Phillips, "Phillips, The Geneva Watch Auction FOUR, Lot 76, Rolex Ref. 3599 Bubbleback, stainless steel with two-tone dial and hooded lugs", Phillips, 2016-11-11]

* [https://www.phillips.com/detail/rolex/CH080515/279 Phillips, "Phillips Geneva Watch Auction TWO Lot 279, Rolex ref. 3599, retailed by Giudici Milano", Phillips, 2015-11-08]

* [https://ranfft.org/caliber/9387-Rolex-635 Ranfft DB, "Rolex caliber 635"]

* [https://www.reddit.com/r/rolex/comments/ayckkj/cool_rolex_of_the_day_502_3599_oyster_perpetual/ "r/rolex "Cool Rolex of the Day" entries for ref 3599 (#502 and #2766)", Reddit]

* [https://robbreport.com/style/watch-collector/lists/rolex-bubbleback-watches-collector-guide-1931-1950s-1235893131/ Robb Report, "Robb Report, A Collector's Guide to Rolex Bubbleback Watches 1931-1950s", Robb Report, current]

@@ Line 100: / Line 100: @@
 ==Movement notes==
-Auction catalogues place the 3599 in Rolex's early Perpetual movement family. Antiquorum's Mondani Collection watch has subsidiary seconds and is catalogued as Cal. 635.
+Auction catalogues place the 3599 in Rolex's early Perpetual movement family. Antiquorum's Mondani Collection watch has subsidiary seconds and is catalogued as Cal. 635. Antiquorum describes it as a 9¾-ligne, 19-jewel movement; Ranfft lists Cal. 635 as 11.5 lignes, 17 jewels, with a 1950 launch. Ranfft classifies it as an automatic calibre with subsidiary seconds. The technical figures and date differ between these sources, so each remains attached to its catalogue.
-Christie's case 152894 has centre seconds and is also catalogued as Cal. 635. The public entry gives the caliber but has no movement photograph; the identification remains unverified. Christie's case 152901, with subsidiary seconds, is listed with a 9¾-ligne movement and 17 jewels. Other auction descriptions give ligne sizes such as 9¾ and 10½ without naming a caliber.
+Christie's case 152894 has centre seconds and is also catalogued as Cal. 635. Ranfft classifies 635 as a subsidiary-seconds calibre. Christie's public entry gives the caliber but shows no movement photograph, so the watch's movement identification remains unverified. Christie's case 152901, with subsidiary seconds, is listed with a 9¾-ligne movement and 17 jewels. Other auction descriptions give ligne sizes such as 9¾ and 10½ without naming a caliber.
 Auction descriptions record both 17- and 19-jewel movements. Seventeen-jewel examples include cases 52082, 97031 and 275254; nineteen-jewel descriptions include case 45032 and Christie's case 152894. The records show no clear sequence by date or case number. They describe lever escapements, monometallic Super-Balance assemblies, Breguet hairsprings and, on some examples, fausses côtes decoration.
@@ Line 395: / Line 395: @@
 * [https://www.phillips.com/detail/rolex/CH080216/76 Phillips, "Phillips, The Geneva Watch Auction FOUR, Lot 76, Rolex Ref. 3599 Bubbleback, stainless steel with two-tone dial and hooded lugs", Phillips, 2016-11-11]
 * [https://www.phillips.com/detail/rolex/CH080515/279 Phillips, "Phillips Geneva Watch Auction TWO Lot 279, Rolex ref. 3599, retailed by Giudici Milano", Phillips, 2015-11-08]
+* [https://ranfft.org/caliber/9387-Rolex-635 Ranfft DB, "Rolex caliber 635"]
 * [https://www.reddit.com/r/rolex/comments/ayckkj/cool_rolex_of_the_day_502_3599_oyster_perpetual/ "r/rolex "Cool Rolex of the Day" entries for ref 3599 (#502 and #2766)", Reddit]
 * [https://robbreport.com/style/watch-collector/lists/rolex-bubbleback-watches-collector-guide-1931-1950s-1235893131/ Robb Report, "Robb Report, A Collector's Guide to Rolex Bubbleback Watches 1931-1950s", Robb Report, current]