Reference:Movements: Difference between revisions

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<div class="rp-era"><div class="rp-era-name">Bubbleback / early automatic</div><div class="rp-chips">[[#cal-520|520]] [[#cal-620|620]] [[#cal-600|600]] [[#cal-a260|A260]] [[#cal-a296|A296]] [[#cal-645|645]] [[#cal-740|740]] [[#cal-745|745]]</div></div>

<div class="rp-era"><div class="rp-era-name">Bubbleback / early automatic</div><div class="rp-chips">[[#cal-520|520]] [[#cal-620|620]] [[#cal-600|600]] [[#cal-59|59]] [[#cal-a260|A260]] [[#cal-a296|A296]] [[#cal-645|645]] [[#cal-740|740]] [[#cal-745|745]]</div></div>

<div class="rp-era"><div class="rp-era-name">Oyster / Oysterdate Precision</div><div class="rp-chips">[[#cal-1210|1210]] [[#cal-1215|1215]] [[#cal-1220|1220]] [[#cal-1225|1225]]</div></div>

<div class="rp-era"><div class="rp-era-name">Vintage sport (1950s–80s)</div><div class="rp-chips">[[#cal-1030|1030]] [[#cal-1035|1035]] [[#cal-1530|1530]] [[#cal-1560|1560]] [[#cal-1570|1570]] [[#cal-1575|1575]]</div></div>

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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. 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.

Auction catalogues describe compatible 10- to 10½-ligne manual movements in [[Reference:2765|2765]] and [[Reference:3009|3009]], but none of the surfaced records shows a Cal. 700 stamp. ~~Both~~ reference pages therefore treat the assignment as plausible rather than confirmed. The four documented [[Reference:1873|1873]] watches are also manual, but their catalogues name no caliber.

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 four documented [[Reference:1873|1873]] watches are also manual, but their catalogues name no caliber.

[[Reference:6244|6244]] is the one reference in this group with a confirmed caliber stamp: Bonhams, Antiquorum, Christie's and Phillips all independently name Cal. 710 across watches spanning both of the reference's numeric case-serial bands. One Christie's catalogue instead describes the movement only by size, "Calibre 10¾," without giving the caliber number.

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The cited Sotheby’s description does not specify the escapement, regulator or shock protection. Those details need examination of the movement.

=== Cal. 59 ===

{| class="wikitable" style="width:280px; font-size:90%;"

! detail

! value

|-

| type

| Manual

|-

| jewels

| 15 or 17

|-

| frequency

| Not recorded

|-

| size

| 10½ lignes (Fontainemelon FHF 30 ébauche)

|-

| escapement

| Straight-line lever

|-

| balance

| Monometallic

|-

| regulator

| Not specified in the cited lots

|-

| shock

| None documented

|}

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, independent of each other and twelve years apart — a stronger footing than the Cal. 700/710 attribution gets on several manual-wind siblings, where it remains a plausible family match rather than a photographed or catalogued stamp.

Jewel count splits 15 and 17 across the four directly-named 3478 watches and 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.

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Cal. 5055 adds the day mechanism and its stricter tolerances. Rolex specified hour-wheel endshake below 0.03mm and calendar change within two minutes of midnight. The day disc is a separate replaceable part, allowing the display language to be changed without altering the movement.

Cal. 5055 powers the yellow-gold ref. 19018, white-gold ref. 19019 and pyramid-bezel ref. 19028. Planned successors, Cals. 5235/5255 with a conventional stepper motor and 5335/5355 with a perpetual calendar, were cancelled before production.

Cal. 5055 powers the yellow-gold [[Reference:19018|ref. 19018]], white-gold [[Reference:19019|ref. 19019]] and pyramid-bezel [[Reference:19028|ref. 19028]]. Planned successors, Cals. 5235/5255 with a conventional stepper motor and 5335/5355 with a perpetual calendar, were cancelled before production.

@@ Line 15: / Line 15: @@
 <div class="rp-index">
 <div class="rp-era"><div class="rp-era-name">Prince (shaped)</div><div class="rp-chips">[[#cal-300|300]] [[#cal-300-ts|7½ T.S. 300]] [[#cal-310|310]] [[#cal-360-hw|360 HW]] [[#cal-350-ts|350 T.S.]]</div></div>
-<div class="rp-era"><div class="rp-era-name">Bubbleback / early automatic</div><div class="rp-chips">[[#cal-520|520]] [[#cal-620|620]] [[#cal-600|600]] [[#cal-a260|A260]] [[#cal-a296|A296]] [[#cal-645|645]] [[#cal-740|740]] [[#cal-745|745]]</div></div>
+<div class="rp-era"><div class="rp-era-name">Bubbleback / early automatic</div><div class="rp-chips">[[#cal-520|520]] [[#cal-620|620]] [[#cal-600|600]] [[#cal-59|59]] [[#cal-a260|A260]] [[#cal-a296|A296]] [[#cal-645|645]] [[#cal-740|740]] [[#cal-745|745]]</div></div>
 <div class="rp-era"><div class="rp-era-name">Oyster / Oysterdate Precision</div><div class="rp-chips">[[#cal-1210|1210]] [[#cal-1215|1215]] [[#cal-1220|1220]] [[#cal-1225|1225]]</div></div>
 <div class="rp-era"><div class="rp-era-name">Vintage sport (1950s–80s)</div><div class="rp-chips">[[#cal-1030|1030]] [[#cal-1035|1035]] [[#cal-1530|1530]] [[#cal-1560|1560]] [[#cal-1570|1570]] [[#cal-1575|1575]]</div></div>
@@ Line 382: / Line 382: @@
 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. 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.
-Auction catalogues describe compatible 10- to 10½-ligne manual movements in [[Reference:2765|2765]] and [[Reference:3009|3009]], but none of the surfaced records shows a Cal. 700 stamp. Both reference pages therefore treat the assignment as plausible rather than confirmed. The four documented [[Reference:1873|1873]] watches are also manual, but their catalogues name no caliber.
+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 four documented [[Reference:1873|1873]] watches are also manual, but their catalogues name no caliber.
+[[Reference:6244|6244]] is the one reference in this group with a confirmed caliber stamp: Bonhams, Antiquorum, Christie's and Phillips all independently name Cal. 710 across watches spanning both of the reference's numeric case-serial bands. One Christie's catalogue instead describes the movement only by size, "Calibre 10¾," without giving the caliber number.
 <span id="cal-600"></span>
@@ Line 426: / Line 428: @@
 The cited Sotheby’s description does not specify the escapement, regulator or shock protection. Those details need examination of the movement.
+<span id="cal-59"></span>
+=== Cal. 59 ===
+{| class="wikitable" style="width:280px; font-size:90%;"
+! detail
+! value
+|-
+| type
+| Manual
+|-
+| jewels
+| 15 or 17
+|-
+| frequency
+| Not recorded
+|-
+| size
+| 10½ lignes (Fontainemelon FHF 30 ébauche)
+|-
+| escapement
+| Straight-line lever
+|-
+| balance
+| Monometallic
+|-
+| regulator
+| Not specified in the cited lots
+|-
+| shock
+| None documented
+|}
+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, independent of each other and twelve years apart — a stronger footing than the Cal. 700/710 attribution gets on several manual-wind siblings, where it remains a plausible family match rather than a photographed or catalogued stamp.
+Jewel count splits 15 and 17 across the four directly-named 3478 watches and 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.
 <span id="cal-a260"></span>
@@ Line 2,506: / Line 2,543: @@
 Cal. 5055 adds the day mechanism and its stricter tolerances. Rolex specified hour-wheel endshake below 0.03mm and calendar change within two minutes of midnight. The day disc is a separate replaceable part, allowing the display language to be changed without altering the movement.
-Cal. 5055 powers the yellow-gold ref. 19018, white-gold ref. 19019 and pyramid-bezel ref. 19028. Planned successors, Cals. 5235/5255 with a conventional stepper motor and 5335/5355 with a perpetual calendar, were cancelled before production.
+Cal. 5055 powers the yellow-gold [[Reference:19018|ref. 19018]], white-gold [[Reference:19019|ref. 19019]] and pyramid-bezel [[Reference:19028|ref. 19028]]. Planned successors, Cals. 5235/5255 with a conventional stepper motor and 5335/5355 with a perpetual calendar, were cancelled before production.
 <span id="prince-appendix"></span>