Reference:Movements: Difference between revisions

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The architecture of Cal. 360 is disputed. Christie's describes a 1938 ref. 2835 "Prince Elegant" with a tonneau-shaped 15-jewel movement, and Charles Jarman's ''The Rolex Reference Guide'' (4th edition) calls Cal. 360 a manual, small-seconds, tonneau-shaped movement with a SuperBalance. Watch Doctor’s online chart instead lists a rectangular, 18-jewel movement measuring 18 × 27mm. The page does not identify an underlying Rolex document.

Jarman dates Cal. 360 to 1937. The expansion of the HW designation remains unconfirmed; it should be retained as a designation rather than expanded to Hans Wilsdorf. The differing shape and jewel descriptions need comparison with the movement in the individual watch.

Jarman dates Cal. 360 to 1937. The expansion of the HW designation remains unconfirmed; it should be retained as a designation rather than expanded to Hans Wilsdorf. The differing shape and jewel descriptions need comparison with the movement in the individual watch. Ineichen’s 2016 catalogue attributes C.360 to a Prince ref. 1880 and describes a nickel-plated lever movement. That is one lot-level attribution; it does not resolve the conflicting descriptions above. [https://ineichen.com/upload/iblock/83c/fnnltq7byndm2n2lwa14zfgz3qzl1tuc.pdf Ineichen, Auction 164, lot 133]

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Cal. 635 belongs to the early automatic family related to Cal. 620. General movement references describe a subsidiary-seconds layout, 17 jewels and a larger movement than the 9¾-ligne measurements in two 3130 auction entries. Antiquorum catalogued 3130 cases 54932 and 474617 with Cal. 635, 19 jewels, 9¾ lignes and subsidiary seconds ([lot 256](https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-256); [lot 169](https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-169)). Christie's identified case 443093 as Cal. 635 with 19 jewels but centre seconds ([2007 lot 2858](https://www.christies.com/en/lot/lot-5008631)). The latter catalogue description conflicts with the usual seconds layout. Without a visible caliber stamp, keep the centre-seconds attribution attached to that lot; do not treat it as a confirmed Cal. 635 variant.

Ref. [[Reference:1925|1925]] lots name Prima or Ultra Prima grades. Antiquorum describes a 9′′′, 15-jewel Prima; Christie’s names Prima on its 1928 example and Ultra Prima on a 1930s octagonal watch; Sterling Vault records a 15-jewel Ultra Prima. The auction record supplies grade names rather than a numeric caliber assignment. Antiquorum also describes a 1948 ref. [[Reference:2081|2081]] with a 10-ligne, 15-jewel Prima; that lot does not name a caliber. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-203-675 Antiquorum, lot 675]

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| jewels

| ~~17–18~~

| 15–18

|-

| frequency

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This Aegler-supplied 10½-ligne hand-wound family uses the 700/710 architecture. It has a straight-line lever escapement, monometallic Superbalance adjusted to six positions, self-compensating Breguet balance spring, and swan-neck micrometer regulator, with no documented shock protection. Antiquorum names Cal. 700 in its catalogue for ref. [[Reference:3358|3358]], case 51,419; ~~this~~ is a lot-~~specific attribution~~. The movement powers the original Air-King 4925 and its Air-Lion, Air-Tiger, and Air-Giant siblings, including the sub-seconds 4365, mid-size 4444, and 4647 Hunter Precision. Its architecture links the pre-war Prince and Bubbleback movements with the post-war automatic Cal. 1030. Cal. 700 and 710 are hand-wound movements; Cal. 720 belongs to the automatic branch. White’s *The Vintage Rolex Field Manual* maps [[Reference:5031|ref. 5031]] to Cal. 710 in a reference table, but auction catalogues describe 5031 examples as automatic date watches. Christie’s [https://www.christies.com/en/lot/lot-204100 listing] records movement number 37519 but no caliber; Antiquorum’s [https://catalog.antiquorum.swiss/en/lots/rolex-lot-120-203 1995], [https://catalog.antiquorum.swiss/en/lots/rolex-lot-53-191 1999] and [https://catalog.antiquorum.swiss/en/lots/rolex-lot-222-285 2009] entries do not name a caliber and report differing sizes and jewel counts. Sotheby’s 2020 and 2022 entries say only “automatic.” The available records do not resolve the conflict, so the 5031 is not assigned to Cal. 710, A.295, 740, or 745 here.

This Aegler-supplied 10½-ligne hand-wound family uses the 700/710 architecture. It has a straight-line lever escapement, monometallic Superbalance adjusted to six positions, self-compensating Breguet balance spring, and swan-neck micrometer regulator, with no documented shock protection. Antiquorum names Cal. 700 in its catalogue for ref. [[Reference:3358|3358]], case 51,419, with 18 jewels; its ref. [[Reference:2081|2081]] case 599,744 lot names the same caliber and grade but records 15 jewels. The discrepancy is unresolved, so the jewel count is left unspecified here. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-225 Antiquorum, ref. 3358] [https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-226 Antiquorum, ref. 2081] The movement powers the original Air-King 4925 and its Air-Lion, Air-Tiger, and Air-Giant siblings, including the sub-seconds 4365, mid-size 4444, and 4647 Hunter Precision. Its architecture links the pre-war Prince and Bubbleback movements with the post-war automatic Cal. 1030. Cal. 700 and 710 are hand-wound movements; Cal. 720 belongs to the automatic branch. White’s *The Vintage Rolex Field Manual* maps [[Reference:5031|ref. 5031]] to Cal. 710 in a reference table, but auction catalogues describe 5031 examples as automatic date watches. Christie’s [https://www.christies.com/en/lot/lot-204100 listing] records movement number 37519 but no caliber; Antiquorum’s [https://catalog.antiquorum.swiss/en/lots/rolex-lot-120-203 1995], [https://catalog.antiquorum.swiss/en/lots/rolex-lot-53-191 1999] and [https://catalog.antiquorum.swiss/en/lots/rolex-lot-222-285 2009] entries do not name a caliber and report differing sizes and jewel counts. Sotheby’s 2020 and 2022 entries say only “automatic.” The available records do not resolve the conflict, so the 5031 is not assigned to Cal. 710, A.295, 740, or 745 here.

White’s reference table also maps [[Reference:6031|ref. 6031]] to Cal. 710, but the auction records describe automatic date watches. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-17-555 Antiquorum’s 2001 lot] and [https://catalog.antiquorum.swiss/en/lots/rolex-lot-25-143 2002 lot] list 10½ lignes and 19 jewels without naming a caliber; the latter combines refs. 6031 and 6074. [https://www.phillips.com/detail/rolex/160689 Phillips] records movement G3569, and [https://www.sothebys.com/en/buy/auction/2025/fine-watches-pf2570/oyster-perpetual-reference-6031-montre-bracelet-en?locale=en Sotheby’s] G9307, but neither names a caliber. The assignment remains unresolved.

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Antiquorum gives 26 jewels for its Cal. 740 example. That count should be kept with the source's description. A different count in a reference table may reflect a counting convention or a different execution; the number alone does not settle which.

Antiquorum also assigns Cal. 740 to manual-wind [[Reference:6094|ref. 6094]], usually with 17 jewels. Its 2008 lot labels the case 6094/6294; the 2010 and 2012 lots identify ref. 6094 alone. The 2018 listing for case 882812 calls the watch self-winding in its headline while the specification field gives Cal. 740. Keep these as lot-level attributions: the records do not establish that the 6094 Cal. 740 is the automatic 26-jewel movement documented here for ref. 4467. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-203-530 Antiquorum, lot 530]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-242-134 Antiquorum, lot 134]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-tropical-lot-262-291 Antiquorum, lot 291]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-oysterdate-precision-lot-313-138 Antiquorum, lot 138].

Surviving examples can have replacement movements or parts. A reference launch date should not be assigned automatically to the movement now inside a particular case.

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Cal. 1215 uses a gradual date change rather than a direct quickset. The date begins moving before midnight and seats as the mechanism completes its cycle.

Christie's places the ref. 6494 changeover between a circa-1956 example with Cal. 1210 and a circa-1958 example with 1215. Other documented fitments include the Speedking 6430, early 6694 production, and refs. 9996/9919. ~~Refs. 6094 and 6294 used Cal. 740 and 790 respectively, rather than 1215.~~

Christie's places the ref. 6494 changeover between a circa-1956 example with Cal. 1210 and a circa-1958 example with 1215. Other documented fitments include the Speedking 6430, early 6694 production, and refs. 9996/9919.

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* [https://jewelry.ha.com/itm/timepieces/wristwatch/rolex-ref-1011-bombe-lugs-14k-gold-oyster-perpetual/a/171226-74030.s Heritage, ref. 1011, Cal. 1560, 2012]

* [https://www.waddingtons.ca/?p=54274 Waddington’s, ref. 1011, Eaton’s presentation dial, Cal. 1520]

* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-203-530 Antiquorum, ref. 6094/6294, 2008, lot 530]

* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-242-134 Antiquorum, ref. 6094, 2010, lot 134]

* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-tropical-lot-262-291 Antiquorum, ref. 6094, 2012, lot 291]

* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-oysterdate-precision-lot-313-138 Antiquorum, ref. 6094, 2018, lot 138]

@@ Line 186: / Line 186: @@
 The architecture of Cal. 360 is disputed. Christie's describes a 1938 ref. 2835 "Prince Elegant" with a tonneau-shaped 15-jewel movement, and Charles Jarman's ''The Rolex Reference Guide'' (4th edition) calls Cal. 360 a manual, small-seconds, tonneau-shaped movement with a SuperBalance. Watch Doctor’s online chart instead lists a rectangular, 18-jewel movement measuring 18 × 27mm. The page does not identify an underlying Rolex document.
-Jarman dates Cal. 360 to 1937. The expansion of the HW designation remains unconfirmed; it should be retained as a designation rather than expanded to Hans Wilsdorf. The differing shape and jewel descriptions need comparison with the movement in the individual watch.
+Jarman dates Cal. 360 to 1937. The expansion of the HW designation remains unconfirmed; it should be retained as a designation rather than expanded to Hans Wilsdorf. The differing shape and jewel descriptions need comparison with the movement in the individual watch. Ineichen’s 2016 catalogue attributes C.360 to a Prince ref. 1880 and describes a nickel-plated lever movement. That is one lot-level attribution; it does not resolve the conflicting descriptions above. [https://ineichen.com/upload/iblock/83c/fnnltq7byndm2n2lwa14zfgz3qzl1tuc.pdf Ineichen, Auction 164, lot 133]
 <span id="cal-510"></span>
@@ Line 405: / Line 405: @@
 Cal. 635 belongs to the early automatic family related to Cal. 620. General movement references describe a subsidiary-seconds layout, 17 jewels and a larger movement than the 9¾-ligne measurements in two 3130 auction entries. Antiquorum catalogued 3130 cases 54932 and 474617 with Cal. 635, 19 jewels, 9¾ lignes and subsidiary seconds ([lot 256](https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-256); [lot 169](https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-169)). Christie's identified case 443093 as Cal. 635 with 19 jewels but centre seconds ([2007 lot 2858](https://www.christies.com/en/lot/lot-5008631)). The latter catalogue description conflicts with the usual seconds layout. Without a visible caliber stamp, keep the centre-seconds attribution attached to that lot; do not treat it as a confirmed Cal. 635 variant.
+Ref. [[Reference:1925|1925]] lots name Prima or Ultra Prima grades. Antiquorum describes a 9′′′, 15-jewel Prima; Christie’s names Prima on its 1928 example and Ultra Prima on a 1930s octagonal watch; Sterling Vault records a 15-jewel Ultra Prima. The auction record supplies grade names rather than a numeric caliber assignment. Antiquorum also describes a 1948 ref. [[Reference:2081|2081]] with a 10-ligne, 15-jewel Prima; that lot does not name a caliber. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-203-675 Antiquorum, lot 675]
 <span id="cal-105-hunter"></span>
@@ Line 417: / Line 419: @@
 |-
 | jewels
-| 17–18
+| 15–18
 |-
 | frequency
@@ Line 435: / Line 437: @@
 |}
-This Aegler-supplied 10½-ligne hand-wound family uses the 700/710 architecture. It has a straight-line lever escapement, monometallic Superbalance adjusted to six positions, self-compensating Breguet balance spring, and swan-neck micrometer regulator, with no documented shock protection. Antiquorum names Cal. 700 in its catalogue for ref. [[Reference:3358|3358]], case 51,419; this is a lot-specific attribution. The movement powers the original Air-King 4925 and its Air-Lion, Air-Tiger, and Air-Giant siblings, including the sub-seconds 4365, mid-size 4444, and 4647 Hunter Precision. Its architecture links the pre-war Prince and Bubbleback movements with the post-war automatic Cal. 1030. Cal. 700 and 710 are hand-wound movements; Cal. 720 belongs to the automatic branch. White’s *The Vintage Rolex Field Manual* maps [[Reference:5031|ref. 5031]] to Cal. 710 in a reference table, but auction catalogues describe 5031 examples as automatic date watches. Christie’s [https://www.christies.com/en/lot/lot-204100 listing] records movement number 37519 but no caliber; Antiquorum’s [https://catalog.antiquorum.swiss/en/lots/rolex-lot-120-203 1995], [https://catalog.antiquorum.swiss/en/lots/rolex-lot-53-191 1999] and [https://catalog.antiquorum.swiss/en/lots/rolex-lot-222-285 2009] entries do not name a caliber and report differing sizes and jewel counts. Sotheby’s 2020 and 2022 entries say only “automatic.” The available records do not resolve the conflict, so the 5031 is not assigned to Cal. 710, A.295, 740, or 745 here.
+This Aegler-supplied 10½-ligne hand-wound family uses the 700/710 architecture. It has a straight-line lever escapement, monometallic Superbalance adjusted to six positions, self-compensating Breguet balance spring, and swan-neck micrometer regulator, with no documented shock protection. Antiquorum names Cal. 700 in its catalogue for ref. [[Reference:3358|3358]], case 51,419, with 18 jewels; its ref. [[Reference:2081|2081]] case 599,744 lot names the same caliber and grade but records 15 jewels. The discrepancy is unresolved, so the jewel count is left unspecified here. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-225 Antiquorum, ref. 3358] [https://catalog.antiquorum.swiss/en/lots/rolex-lot-108-226 Antiquorum, ref. 2081] The movement powers the original Air-King 4925 and its Air-Lion, Air-Tiger, and Air-Giant siblings, including the sub-seconds 4365, mid-size 4444, and 4647 Hunter Precision. Its architecture links the pre-war Prince and Bubbleback movements with the post-war automatic Cal. 1030. Cal. 700 and 710 are hand-wound movements; Cal. 720 belongs to the automatic branch. White’s *The Vintage Rolex Field Manual* maps [[Reference:5031|ref. 5031]] to Cal. 710 in a reference table, but auction catalogues describe 5031 examples as automatic date watches. Christie’s [https://www.christies.com/en/lot/lot-204100 listing] records movement number 37519 but no caliber; Antiquorum’s [https://catalog.antiquorum.swiss/en/lots/rolex-lot-120-203 1995], [https://catalog.antiquorum.swiss/en/lots/rolex-lot-53-191 1999] and [https://catalog.antiquorum.swiss/en/lots/rolex-lot-222-285 2009] entries do not name a caliber and report differing sizes and jewel counts. Sotheby’s 2020 and 2022 entries say only “automatic.” The available records do not resolve the conflict, so the 5031 is not assigned to Cal. 710, A.295, 740, or 745 here.
 White’s reference table also maps [[Reference:6031|ref. 6031]] to Cal. 710, but the auction records describe automatic date watches. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-17-555 Antiquorum’s 2001 lot] and [https://catalog.antiquorum.swiss/en/lots/rolex-lot-25-143 2002 lot] list 10½ lignes and 19 jewels without naming a caliber; the latter combines refs. 6031 and 6074. [https://www.phillips.com/detail/rolex/160689 Phillips] records movement G3569, and [https://www.sothebys.com/en/buy/auction/2025/fine-watches-pf2570/oyster-perpetual-reference-6031-montre-bracelet-en?locale=en Sotheby’s] G9307, but neither names a caliber. The assignment remains unresolved.
@@ Line 685: / Line 687: @@
 Antiquorum gives 26 jewels for its Cal. 740 example. That count should be kept with the source's description. A different count in a reference table may reflect a counting convention or a different execution; the number alone does not settle which.
+Antiquorum also assigns Cal. 740 to manual-wind [[Reference:6094|ref. 6094]], usually with 17 jewels. Its 2008 lot labels the case 6094/6294; the 2010 and 2012 lots identify ref. 6094 alone. The 2018 listing for case 882812 calls the watch self-winding in its headline while the specification field gives Cal. 740. Keep these as lot-level attributions: the records do not establish that the 6094 Cal. 740 is the automatic 26-jewel movement documented here for ref. 4467. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-203-530 Antiquorum, lot 530]; [https://catalog.antiquorum.swiss/en/lots/rolex-lot-242-134 Antiquorum, lot 134]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-tropical-lot-262-291 Antiquorum, lot 291]; [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-oysterdate-precision-lot-313-138 Antiquorum, lot 138].
 Surviving examples can have replacement movements or parts. A reference launch date should not be assigned automatically to the movement now inside a particular case.
@@ Line 856: / Line 860: @@
 Cal. 1215 uses a gradual date change rather than a direct quickset. The date begins moving before midnight and seats as the mechanism completes its cycle.
-Christie's places the ref. 6494 changeover between a circa-1956 example with Cal. 1210 and a circa-1958 example with 1215. Other documented fitments include the Speedking 6430, early 6694 production, and refs. 9996/9919. Refs. 6094 and 6294 used Cal. 740 and 790 respectively, rather than 1215.
+Christie's places the ref. 6494 changeover between a circa-1956 example with Cal. 1210 and a circa-1958 example with 1215. Other documented fitments include the Speedking 6430, early 6694 production, and refs. 9996/9919.
 <span id="cal-1216"></span>
@@ Line 2,966: / Line 2,972: @@
 * [https://jewelry.ha.com/itm/timepieces/wristwatch/rolex-ref-1011-bombe-lugs-14k-gold-oyster-perpetual/a/171226-74030.s Heritage, ref. 1011, Cal. 1560, 2012]
 * [https://www.waddingtons.ca/?p=54274 Waddington’s, ref. 1011, Eaton’s presentation dial, Cal. 1520]
+* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-203-530 Antiquorum, ref. 6094/6294, 2008, lot 530]
+* [https://catalog.antiquorum.swiss/en/lots/rolex-lot-242-134 Antiquorum, ref. 6094, 2010, lot 134]
+* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-tropical-lot-262-291 Antiquorum, ref. 6094, 2012, lot 291]
+* [https://catalog.antiquorum.swiss/en/lots/rolex-ref-6094-oysterdate-precision-lot-313-138 Antiquorum, ref. 6094, 2018, lot 138]