Reference:3132: Difference between revisions

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Cal. 630 reworks the motion works so the watch can carry center seconds instead of a subsidiary register. It keeps most of the 620 train but adds an indirect seconds drive. That is the practical movement change buyers are really looking at on the reference.

The ~~choice~~ has two practical consequences~~. Indirect centre seconds exhibit~~ a slight stutter ~~or backlash~~ in the sweep hand~~, because the coupling between the drive train~~ and ~~the seconds pinion is looser~~ than a direct ~~centre-seconds arrangement. Service history can exaggerate it. A well-serviced Cal. 630 reads as smooth to most observers; close observation in good light will show the characteristic indirect~~-drive hesitation. The indirect drive also adds minor complexity that makes servicing marginally more demanding, which is one plausible reason 3132 survival rates may lag 3131 rates slightly. More service interventions mean more opportunities for parts replacement, refinishing, and retirement.

The indirect centre-seconds layout has two practical consequences: a slight visible stutter in the sweep hand and a little more service complexity than a direct-drive setup.

Cal. 630 is, like Cal. 620, unidirectional. Bidirectional winding in a Rolex automatic arrives only with Cal. 1030 in 1950, the movement that also ends the Bubbleback era by enabling a flat caseback.

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The 3132 follows the 3131’s materials policy exactly: precious metals only. No confirmed stainless steel examples appear in the surfaced auction or dealer record. Four case materials are documented across the corpus.

14K yellow gold is the most common configuration ~~at auction, carrying Swiss or French assay marks depending on market of origin~~. ~~The 14K pink~~ gold ~~subset is smaller and runs warmer in tone~~, and ~~these turn up in North American dealer records more often than in Swiss auction consignments.~~ 18K ~~yellow~~ gold ~~was the premium configuration at original retail; the cases weigh noticeably more than their 14K counterparts, and hallmark verification is required to distinguish them in photographs. At~~ the top of the ~~3132~~ market ~~sits 18K pink gold, often paired with pink or salmon dials in the case-matched convention seen across the 3131 and the broader 1930s–1940s Oyster line~~.

14K yellow gold is the most common auction configuration. Pink-gold examples sit higher, and 18K pink gold with matching dial colour still marks the top of the market.

The Vintage Rolex Field Manual lists a suffix /0 designation for the 3132 in stainless steel, flagged as rare. Whether this suffix code represents physically produced examples or a theoretical construction code never realised in volume is not documented. No steel 3132 has surfaced in the indexed auction record. The weight of evidence places the reference firmly within the precious-metal-only Bubbleback tier alongside the 3131, positioned from introduction at the premium end of the catalog.

@@ Line 87: / Line 87: @@
 Cal. 630 reworks the motion works so the watch can carry center seconds instead of a subsidiary register. It keeps most of the 620 train but adds an indirect seconds drive. That is the practical movement change buyers are really looking at on the reference.
-The choice has two practical consequences. Indirect centre seconds exhibit a slight stutter or backlash in the sweep hand, because the coupling between the drive train and the seconds pinion is looser than a direct centre-seconds arrangement. Service history can exaggerate it. A well-serviced Cal. 630 reads as smooth to most observers; close observation in good light will show the characteristic indirect-drive hesitation. The indirect drive also adds minor complexity that makes servicing marginally more demanding, which is one plausible reason 3132 survival rates may lag 3131 rates slightly. More service interventions mean more opportunities for parts replacement, refinishing, and retirement.
+The indirect centre-seconds layout has two practical consequences: a slight visible stutter in the sweep hand and a little more service complexity than a direct-drive setup.
 Cal. 630 is, like Cal. 620, unidirectional. Bidirectional winding in a Rolex automatic arrives only with Cal. 1030 in 1950, the movement that also ends the Bubbleback era by enabling a flat caseback.
@@ Line 96: / Line 96: @@
 The 3132 follows the 3131’s materials policy exactly: precious metals only. No confirmed stainless steel examples appear in the surfaced auction or dealer record. Four case materials are documented across the corpus.
-K yellow gold is the most common configuration at auction, carrying Swiss or French assay marks depending on market of origin. The 14K pink gold subset is smaller and runs warmer in tone, and these turn up in North American dealer records more often than in Swiss auction consignments. 18K yellow gold was the premium configuration at original retail; the cases weigh noticeably more than their 14K counterparts, and hallmark verification is required to distinguish them in photographs. At the top of the 3132 market sits 18K pink gold, often paired with pink or salmon dials in the case-matched convention seen across the 3131 and the broader 1930s–1940s Oyster line.
+K yellow gold is the most common auction configuration. Pink-gold examples sit higher, and 18K pink gold with matching dial colour still marks the top of the market.
 The Vintage Rolex Field Manual lists a suffix /0 designation for the 3132 in stainless steel, flagged as rare. Whether this suffix code represents physically produced examples or a theoretical construction code never realised in volume is not documented. No steel 3132 has surfaced in the indexed auction record. The weight of evidence places the reference firmly within the precious-metal-only Bubbleback tier alongside the 3131, positioned from introduction at the premium end of the catalog.