Reference:Movements - Revision history

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← Older revision		Revision as of 15:14, 7 August 2026
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	\| <span id="cal-300-ts"></span>'''7½′′′ T.S. 300''' \|\| shaped manual-wind \|\| 1932–1938 \|\| 18j · 18,000 vph · ~50h \|\| chronometer (ultra prima, 6-position) \|\| Prince \|\| Très Soigné — the Ultra Prima movement variant; lateral lever escapement; monometallic balance with micrometer regulator; Breguet overcoil hairspring; rhodium-plated; documented on Antiquorum May 2006 Mondani lot 46 (1490 case 17,365, dated 1935) and on the [[Reference:1527\|1527 Railway]] (Antiquorum Vicenza 1992 lot 146 white+pink, Geneva 2005 lot 100 white+yellow, Mondani 2006 lot 108/33 white+yellow with bamboo bracelet 1931, hammer CHF 27,140 corpus high). On 1527 examples the grade ratio reverses the 1490 pattern — Extra Prima dominates, Ultra Prima 8-position 'Officially Tested in Eight Ways' is the apex outlier		\| <span id="cal-300-ts"></span>'''7½′′′ T.S. 300''' \|\| shaped manual-wind \|\| 1932–1938 \|\| 18j · 18,000 vph · ~50h \|\| chronometer (ultra prima, 6-position) \|\| Prince \|\| Très Soigné — the Ultra Prima movement variant; lateral lever escapement; monometallic balance with micrometer regulator; Breguet overcoil hairspring; rhodium-plated; documented on Antiquorum May 2006 Mondani lot 46 (1490 case 17,365, dated 1935) and on the [[Reference:1527\|1527 Railway]] (Antiquorum Vicenza 1992 lot 146 white+pink, Geneva 2005 lot 100 white+yellow, Mondani 2006 lot 108/33 white+yellow with bamboo bracelet 1931, hammer CHF 27,140 corpus high). On 1527 examples the grade ratio reverses the 1490 pattern — Extra Prima dominates, Ultra Prima 8-position 'Officially Tested in Eight Ways' is the apex outlier
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	\| <span id="cal-310"></span>'''310''' \|\| shaped manual-wind \|\| Aegler shaped (Cal. 300 family — distinct caliber number) 1932–1938 (then stockpiled and cased into 1950s Princes) \|\| 18j · 18,000 vph · ~50h \|\| chronometer \|\| Prince \|\| 7½′′′ rectangular, lateral lever escapement, Superbalance adjusted to 6 positions, Breguet hairspring, swan-neck micro-regulator. Documented exclusively on the [[Reference:3361\|3361 Aerodynamic]] / 3362 / [[Reference:3937\|3937]] wedge-shaped Prince family — every documented 3361 catalog entry names Cal. 310 specifically (Antiquorum Mondani 2006 lot 209/210, NY 2015 sale 296 lot 73 mvt T94122, PatekMonger Cuervo y Sobrinos). Available in BOTH sub-seconds and centre-seconds variants; the 3361/3362/3937 receive the centre-seconds variant. Cal. 310 production ended 1938 but Aegler stockpiled movements that Rolex cased into 3361 production through 1952 — the case-and-movement number divergence reflects this stockpile pattern (e.g. Mondani 1952 case 899,677 carries a movement number significantly lower than the case). Auction-house catalogs commonly under-specify Cal. 310 as 'Cal. 300 family' — treat that label as under-specified, not as a sub-caliber distinction		\| <span id="cal-310"></span>'''310''' \|\| shaped manual-wind \|\| Aegler shaped (Cal. 300 family — distinct caliber number) 1932–1938 (then stockpiled and cased into 1950s Princes) \|\| 18j · 18,000 vph · ~50h \|\| chronometer \|\| Prince \|\| 7½′′′ rectangular, lateral lever escapement, Superbalance adjusted to 6 positions, Breguet hairspring, swan-neck micro-regulator. Documented exclusively on the [[Reference:3361\|3361 Aerodynamic]] / 3362 / [[Reference:3937\|3937]] wedge-shaped Prince family — every documented 3361 catalog entry names Cal. 310 specifically (Antiquorum Mondani 2006 lot 209/210, NY 2015 sale 296 lot 73 mvt T94122, PatekMonger Cuervo y Sobrinos). Available in BOTH sub-seconds and centre-seconds variants; the 3361/3362/3937 receive the centre-seconds variant. Cal. 310 production ended 1938 but Aegler stockpiled movements that Rolex cased into 3361 production through 1952 — the case-and-movement number divergence reflects this stockpile pattern (e.g. Mondani 1952 case 899,677 carries a movement number significantly lower than the case). Auction-house catalogs commonly under-specify Cal. 310 as 'Cal. 300 family' — treat that label as under-specified, not as a sub-caliber distinction
	\|-		\|-
	\| <span id="cal-360-hw"></span>'''360 HW''' \|\| shaped manual-wind \|\| 1936–late 1930s \|\| 15–18j · 18,000 vph · ~50h \|\| chronometer (extra prima) \|\| Prince \|\| Successor caliber for late-period 971 / 1490 / 1862 / 3361; visually identifiable by tonneau-shaped movement plates rather than the rectangular plates of Cal. 300/350 — the plate-shape distinction is the cleanest authentication tell for late-era Prince movement attribution (NAWCC Doug Sinclair / gmorse / Cary Hurt 2013)		\| <span id="cal-360-hw"></span>'''360 HW''' \|\| shaped manual-wind \|\| 1936–late 1930s \|\| 15–18j · 18,000 vph · ~50h \|\| chronometer (extra prima) \|\| Prince \|\| Successor caliber for late-period 971 / 1490 / 1862 / 3361; visually identifiable by tonneau-shaped movement plates rather than the rectangular plates of Cal. 300/350 — the plate-shape distinction is the cleanest authentication tell for late-era Prince movement attribution (NAWCC Doug Sinclair / gmorse / Cary Hurt 2013)
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	The Prince family runs on Aegler shaped movements that predate every other Rolex movement on this page. The 1927 Wilsdorf-Aegler patent for a "shaped watch movement with a seconds dial" placed the winding barrel at one end of the rectangular movement and the balance at the other — the architectural choice that allowed both a larger balance wheel (for improved precision) and a larger mainspring barrel (for longer power reserve) than competing shaped calibers of the period. The Aegler-Rolex relationship was a supplier arrangement: Aegler manufactured in Bienne as an independent firm until Rolex purchased the company from the Borer family in April 2004 (Tim Mosso, Quill & Pad). "Aegler" and "Rebberg" refer to the same manufacturer — Aegler is the company name, Rebberg the Bienne street address.		The Prince family runs on Aegler shaped movements that predate every other Rolex movement on this page. The 1927 Wilsdorf-Aegler patent for a "shaped watch movement with a seconds dial" placed the winding barrel at one end of the rectangular movement and the balance at the other — the architectural choice that allowed both a larger balance wheel (for improved precision) and a larger mainspring barrel (for longer power reserve) than competing shaped calibers of the period. The Aegler-Rolex relationship was a supplier arrangement: Aegler manufactured in Bienne as an independent firm until Rolex purchased the company from the Borer family in April 2004 (Tim Mosso, Quill & Pad). "Aegler" and "Rebberg" refer to the same manufacturer — Aegler is the company name, Rebberg the Bienne street address.

	Two distinct caliber generations span the Prince production window. Cal. 300 (rectangular plates, 1928–1935) is the original shaped movement: 15 jewels at the Prima base, 18 jewels at Extra Prima and Ultra Prima with 6-position adjustment, 18,000 vph, approximately 50-hour power reserve. Cal. 7½′′′ T.S. 300 is the Ultra Prima execution of the same architecture (1932–1938) with lateral lever escapement and monometallic balance. Cal. 360 HW is the 1936-onward successor with tonneau-shaped plates rather than the rectangular plates of Cal. 300. The plate-shape distinction is the clearest visual authentication: a 971 or 1490 with rectangular movement plates is a 1928–1935 example; a watch in the same case reference with tonneau plates is a 1936-onward example.		Two distinct caliber generations span the Prince production window. Cal. 300 (rectangular plates, 1928–1935) is the original shaped movement: 15 jewels at the Prima base, 18 jewels at Extra Prima and Ultra Prima with 6-position adjustment, 18,000 vph, approximately 50-hour power reserve. Cal. 7½′′′ T.S. 300 is the Ultra Prima execution of the same architecture (1932–1938) with lateral lever escapement and monometallic balance. Cal. 360 HW is the 1936-onward successor with tonneau-shaped plates rather than the rectangular plates of Cal. 300. The plate-shape distinction is the clearest visual authentication: a 971 or 1490 with rectangular movement plates is a 1928–1935 example; a watch in the same case reference with tonneau plates is a 1936-onward example.

	Movement grading runs Prima → Extra Prima → Ultra Prima, corresponding to ascending jewel counts (15 → 18), adjustment positions, and chronometer testing rigour. The "Chronometer" or "Observatory" designation on a Prince dial corresponds to Extra Prima or Ultra Prima grade — a Prima movement does not earn the dial mark. The Kew-Teddington observatory testing tradition runs through this period: Rolex submitted Prince movements to the National Physical Laboratory at Kew for independent rate certificates against the Swiss Bureaux Officiels Suisse de Contrôle. The 1914 Class A Kew certificate that Rolex commonly cites as their first official chronometer rating was issued for an earlier ladies' wristwatch movement; the Prince calibers extend the observatory-testing lineage from 1928 forward, but the 1914 milestone predates the Prince family.		Movement grading runs Prima → Extra Prima → Ultra Prima, corresponding to ascending jewel counts (15 → 18), adjustment positions, and chronometer testing rigour. The "Chronometer" or "Observatory" designation on a Prince dial corresponds to Extra Prima or Ultra Prima grade — a Prima movement does not earn the dial mark. The Kew-Teddington observatory testing tradition runs through this period: Rolex submitted Prince movements to the National Physical Laboratory at Kew for independent rate certificates against the Swiss Bureaux Officiels Suisse de Contrôle. The 1914 Class A Kew certificate that Rolex commonly cites as their first official chronometer rating was issued for an earlier ladies' wristwatch movement; the Prince calibers extend the observatory-testing lineage from 1928 forward, but the 1914 milestone predates the Prince family.

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2026-06-29T01:26:31Z

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← Older revision		Revision as of 01:26, 29 June 2026
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	{{DISPLAYTITLE:Rolex Caliber & Movement Reference}}		{{DISPLAYTITLE:Rolex Caliber & Movement Reference}}
	{{#seo:		{{#seo:
	\|title=Rolex ~~Caliber and Movement~~ Reference — BezelBase		\|title=Rolex Movements & Calibers — Cross-Family Reference \| BezelBase
	\|description=Cross-family caliber catalogue for vintage and discontinued Rolex. Every movement that powered a pre-2020 Daytona, Submariner, GMT-Master, Explorer, or Oyster Perpetual reference, with spec, lineage, and reference fitments.		\|description=Cross-family caliber catalogue for vintage and discontinued Rolex. Every movement that powered a pre-2020 Daytona, Submariner, GMT-Master, Explorer, or Oyster Perpetual reference, with spec, lineage, and reference fitments.
	\|keywords=Rolex caliber, Rolex movement, cal 4030, cal 4130, cal 727, Valjoux 72, Zenith El Primero, cal 1570, cal 1575, cal 3035, cal 3135, cal 3185, cal 3186, Oysterquartz 5035, Rolex chronograph caliber, vintage Rolex movement		\|keywords=Rolex caliber, Rolex movement, cal 4030, cal 4130, cal 727, Valjoux 72, Zenith El Primero, cal 1570, cal 1575, cal 3035, cal 3135, cal 3185, cal 3186, Oysterquartz 5035, Rolex chronograph caliber, vintage Rolex movement

Klaudiusz: Movements: add Day-Date caliber lineage (1055/1555/1556/3055/3155/3156 to index + Day-Date lineage section); fix cal-5055 family to Day-Date (19018/19019)

2026-06-16T01:28:21Z

Movements: add Day-Date caliber lineage (1055/1555/1556/3055/3155/3156 to index + Day-Date lineage section); fix cal-5055 family to Day-Date (19018/19019)

← Older revision		Revision as of 01:28, 16 June 2026
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	\|-		\|-
	\| <span id="cal-3186"></span>'''3186''' \|\| automatic \|\| 2007–19 \|\| 31j · 28,800 vph · 50h \|\| hack · quickset · chronometer \|\| GMT-Master, Explorer \|\| Parachrom hairspring; 116710LN / BLNR / 116719BLRO / late 16710		\| <span id="cal-3186"></span>'''3186''' \|\| automatic \|\| 2007–19 \|\| 31j · 28,800 vph · 50h \|\| hack · quickset · chronometer \|\| GMT-Master, Explorer \|\| Parachrom hairspring; 116710LN / BLNR / 116719BLRO / late 16710
			\|-
			\| <span id="cal-1055"></span>'''1055''' \|\| automatic \|\| 1956–1959 \|\| 25j · 18,000 vph · 42h \|\| chronometer (gen-2 1055B) \|\| Day-Date \|\| First Rolex day-and-date caliber. Gen-1 (6510 / 6511) pre-COSC; gen-2 "1055B" (6611 / 6612 / 6613) added free-sprung Microstella + Breguet overcoil + COSC. No quickset, no hacking.
			\|-
			\| <span id="cal-1555"></span>'''1555''' \|\| automatic \|\| 1959–c.1965 \|\| 25j · 18,000 vph · 42h \|\| chronometer · non-quickset · non-hack \|\| Day-Date \|\| Cal 1055-derived. Free-sprung Microstella, Breguet overcoil. Early 4-digit Day-Date: 1803 / 1804 / 1806 / 1807 / 1811.
			\|-
			\| <span id="cal-1556"></span>'''1556''' \|\| automatic \|\| c.1965–1977/78 \|\| 26j · 19,800 vph · 42h \|\| hack (from 1972) · non-quickset · chronometer \|\| Day-Date \|\| Higher frequency than 1555; hacking added 1972 mid-production (pre-1972 examples do not hack). Mid-and-late 4-digit Day-Date: 1803 / 1804 / 1806 / 1807 / 1811.
			\|-
			\| <span id="cal-3055"></span>'''3055''' \|\| automatic \|\| 1977–1988 \|\| 27j · 28,800 vph · 48h \|\| hack · single quickset (date) · chronometer \|\| Day-Date \|\| First Day-Date with quickset (date only; day still advanced by running the hands). Sapphire-crystal era. 18038 / 18048 / 18078 / early 18238.
			\|-
			\| <span id="cal-3155"></span>'''3155''' \|\| automatic \|\| 1988–2019 \|\| 31j · 28,800 vph · 48h \|\| hack · double quickset (day + date) · chronometer \|\| Day-Date \|\| Double quickset from 1988; long-serving modern Day-Date movement. Late 18238 / 18248 and the 6-digit 118238 family.
			\|-
			\| <span id="cal-3156"></span>'''3156''' \|\| automatic \|\| 2008–2015 \|\| 31j · 28,800 vph · 48h \|\| hack · double quickset · chronometer \|\| Day-Date \|\| Day-Date II 41mm derivative of the 3155 with Parachrom hairspring + Paraflex shock. 218238 / 218239 / 218206 / 218235.
	\|-		\|-
	\| <span id="cal-5035"></span>'''5035''' \|\| quartz \|\| 1977–2001 \|\| 11j · 32 kHz vph \|\| hack · quickset · chronometer \|\| Oyster Perpetual \|\| Oysterquartz 17000 / 17013 / 17014		\| <span id="cal-5035"></span>'''5035''' \|\| quartz \|\| 1977–2001 \|\| 11j · 32 kHz vph \|\| hack · quickset · chronometer \|\| Oyster Perpetual \|\| Oysterquartz 17000 / 17013 / 17014
	\|-		\|-
	\| <span id="cal-5055"></span>'''5055''' \|\| quartz \|\| 1977–2001 \|\| 11j · 32 kHz vph \|\| hack · quickset · chronometer \|\| ~~Oyster Perpetual~~ \|\| Oysterquartz Day-Date 19018 / 19028		\| <span id="cal-5055"></span>'''5055''' \|\| quartz \|\| 1977–2001 \|\| 11j · 32 kHz vph \|\| hack · quickset · chronometer \|\| Day-Date \|\| Oysterquartz Day-Date 19018 (yellow gold) / 19019 (white gold); 19028 pyramid bezel
	\|}		\|}

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	The Oysterquartz sits outside the mechanical line. Cal 5035 and 5055 launched in 1977 as Rolex's in-house quartz calibers and ran through 2001. Total output stayed small, under about 25,000 watches across the 24-year run. Cal 5035 powers the Oysterquartz Datejust and Oyster Perpetual references; cal 5055 powers the Day-Date Oysterquartz.		The Oysterquartz sits outside the mechanical line. Cal 5035 and 5055 launched in 1977 as Rolex's in-house quartz calibers and ran through 2001. Total output stayed small, under about 25,000 watches across the 24-year run. Cal 5035 powers the Oysterquartz Datejust and Oyster Perpetual references; cal 5055 powers the Day-Date Oysterquartz.

			== Day-Date lineage ==

			The Day-Date runs on its own caliber family, separate from the sport and Oyster Perpetual movements. Cal 1055 (1956–1959) is Rolex's first day-and-date movement, carried by the originals-era 6510 / 6511 / 6611 / 6612 / 6613. The 4-digit era splits the run in two: cal 1555 (1959 to c. 1965) at 18,000 vph, then cal 1556 (c. 1965 to 1977-78) at 19,800 vph with hacking added across the family in 1972. Neither has quickset, so the 4-digit Day-Dates (1803, 1804, 1806, 1807, 1811) set the day and date only by running the hands through midnight.

			Quickset arrives with the 5-digit era. Cal 3055 (1977–1988) adds a date quickset to the 18038 and its siblings; the day still advances by running the hands. Cal 3155 (1988 onward) adds the day quickset as well, the double-quickset the 18238 introduced and the 6-digit 118238 family carried forward unchanged. The 41mm Day-Date II runs cal 3156 (2008–2015), a 3155 derivative with a Parachrom hairspring and Paraflex shock. The quartz outlier, cal 5055, powers the Oysterquartz Day-Date 19018 and 19019.

	== Prince lineage ==		== Prince lineage ==

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2026-06-04T04:42:20Z

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	\|description=Cross-family caliber catalogue for vintage and discontinued Rolex. Every movement that powered a pre-2020 Daytona, Submariner, GMT-Master, Explorer, or Oyster Perpetual reference, with spec, lineage, and reference fitments.		\|description=Cross-family caliber catalogue for vintage and discontinued Rolex. Every movement that powered a pre-2020 Daytona, Submariner, GMT-Master, Explorer, or Oyster Perpetual reference, with spec, lineage, and reference fitments.
	\|keywords=Rolex caliber, Rolex movement, cal 4030, cal 4130, cal 727, Valjoux 72, Zenith El Primero, cal 1570, cal 1575, cal 3035, cal 3135, cal 3185, cal 3186, Oysterquartz 5035, Rolex chronograph caliber, vintage Rolex movement		\|keywords=Rolex caliber, Rolex movement, cal 4030, cal 4130, cal 727, Valjoux 72, Zenith El Primero, cal 1570, cal 1575, cal 3035, cal 3135, cal 3185, cal 3186, Oysterquartz 5035, Rolex chronograph caliber, vintage Rolex movement
	\|type=~~article~~		\|type=Article
	}}		}}

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2026-05-31T00:26:37Z

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			{{DISPLAYTITLE:Rolex Caliber & Movement Reference}}
	{{#seo:		{{#seo:
	\|title=Rolex Caliber and Movement Reference — BezelBase		\|title=Rolex Caliber and Movement Reference — BezelBase

Admin: Add caliber-vs-case-serial dating note + reciprocal link to Reference:Serial-numbers

2026-05-30T15:45:30Z

Add caliber-vs-case-serial dating note + reciprocal link to Reference:Serial-numbers

← Older revision		Revision as of 15:45, 30 May 2026
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	== Rolex movements ==		== Rolex movements ==
	The table below catalogues every Rolex caliber that powered an in-scope reference on this wiki, with spec, production span, and reference fitments. Lineage sections at the bottom of the page group calibers by family arc (Prince Aegler shaped, manual-wind chronograph, automatic chronograph, sport time-only, Oysterquartz).		The table below catalogues every Rolex caliber that powered an in-scope reference on this wiki, with spec, production span, and reference fitments. Lineage sections at the bottom of the page group calibers by family arc (Prince Aegler shaped, manual-wind chronograph, automatic chronograph, sport time-only, Oysterquartz).

			The caliber number is engraved on the movement itself and read with the caseback off; it is separate from the case serial, which is the number that dates the watch on the [[Reference:Serial-numbers\|serial-number page]]. Where a movement number and case number diverge sharply, as on the stockpiled Prince calibers, the movement was made well before the case it sits in.

	== Caliber index ==		== Caliber index ==

Admin: Add Quick-jump anchor rail to shared registry page

2026-05-24T00:25:05Z

Add Quick-jump anchor rail to shared registry page

← Older revision		Revision as of 00:25, 24 May 2026
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	<small>[[Main Page]] -> '''Movements'''</small>		<small>[[Main Page]] -> '''Movements'''</small>

			== Quick jump ==

			{\| style="width:100%; border-collapse:separate; border-spacing:0; padding:8px 12px; margin:0.5em 0 1.5em 0; background:#f8f8f6; border-left:3px solid #555;"
			\|-
			\| style="padding:4px 0; vertical-align:top;" \| ''Pre-Oyster era:'' [[#cal-a260\|A260]] · [[#cal-a296\|A296]] · [[#cal-1030\|1030]] · [[#cal-1036\|1036]]
			\|-
			\| style="padding:4px 0; vertical-align:top;" \| ''1500 family:'' [[#cal-1520\|1520]] · [[#cal-1530\|1530]] · [[#cal-1560\|1560]] · [[#cal-1570\|1570]] · [[#cal-1575\|1575]]
			\|-
			\| style="padding:4px 0; vertical-align:top;" \| ''Modern Sub / GMT:'' [[#cal-3035\|3035]] · [[#cal-3135\|3135]] · [[#cal-3185\|3185]] · [[#cal-3186\|3186]]
			\|-
			\| style="padding:4px 0; vertical-align:top;" \| ''Daytona chronograph:'' [[#cal-72\|72]] · [[#cal-72b\|72B]] · [[#cal-722\|722]] · [[#cal-727\|727]] · [[#cal-4030\|4030]] · [[#cal-4130\|4130]]
			\|-
			\| style="padding:4px 0; vertical-align:top;" \| ''Prince shaped:'' [[#cal-300\|300]] · [[#cal-350\|350]] · [[#cal-300-ts\|7¾ T.S. 300]]
			\|}

	== Rolex movements ==		== Rolex movements ==

Admin: Add Cal 1525 and Cal 1535 movement rows for Air-King-Date 5700 / 5701 (date-module 1500-family variants, non-chronometer Precision tier)

2026-05-02T03:38:28Z

Add Cal 1525 and Cal 1535 movement rows for Air-King-Date 5700 / 5701 (date-module 1500-family variants, non-chronometer Precision tier)

← Older revision		Revision as of 03:38, 2 May 2026
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	\|-		\|-
	\| <span id="cal-1520"></span>'''1520''' \|\| automatic \|\| 1963–90 \|\| 17 / 25 / 26j · 19,800 vph · 42h \|\| — \|\| Submariner, Air-King, Oyster Perpetual \|\| Non-chronometer twin; powers late 5513 / 5514 / 5517 Submariners and the long-running 5500 Air-King (1963 onward) / 1002 OP / 5501 / 5520. 17-jewel variant is a US/Canada import-duty-bracket move, not a movement difference		\| <span id="cal-1520"></span>'''1520''' \|\| automatic \|\| 1963–90 \|\| 17 / 25 / 26j · 19,800 vph · 42h \|\| — \|\| Submariner, Air-King, Oyster Perpetual \|\| Non-chronometer twin; powers late 5513 / 5514 / 5517 Submariners and the long-running 5500 Air-King (1963 onward) / 1002 OP / 5501 / 5520. 17-jewel variant is a US/Canada import-duty-bracket move, not a movement difference
			\|-
			\| <span id="cal-1525"></span>'''1525''' \|\| automatic \|\| 1959–c.1975 \|\| 17 / 25j · 19,800 vph · 42h \|\| — \|\| Air-King \|\| Date-module variant of Cal 1520 powering early 5700 / 5701 Air-King-Date. Non-chronometer (Precision tier); the chronometer-rated date sibling in this generation is the 1500-series Oyster Perpetual Date (1500 / 1501 / 1503 / 1505)
			\|-
			\| <span id="cal-1535"></span>'''1535''' \|\| automatic \|\| c.1975–1988 \|\| 26j · 19,800 vph · 42h \|\| — \|\| Air-King \|\| Later running update to Cal 1525, same architecture with date module. Powers later 5700 / 5701 Air-King-Date production. Non-chronometer; the chronometer-rated 1500-series uses a related 1500-family date caliber
	\|-		\|-
	\| <span id="cal-1560"></span>'''1560''' \|\| automatic \|\| 1959–65 \|\| 26j · 18,000 vph · 42h \|\| chronometer \|\| Submariner, GMT-Master, Explorer \|\| Cross-family chronometer; mid 5512 / 1675 / 1016		\| <span id="cal-1560"></span>'''1560''' \|\| automatic \|\| 1959–65 \|\| 26j · 18,000 vph · 42h \|\| chronometer \|\| Submariner, GMT-Master, Explorer \|\| Cross-family chronometer; mid 5512 / 1675 / 1016

Admin: Cal 1530 row: add 5504 36mm Explorer-case Air-King note (1957-1964 parallel production with early 5500)

2026-05-02T03:27:03Z

Cal 1530 row: add 5504 36mm Explorer-case Air-King note (1957-1964 parallel production with early 5500)

← Older revision		Revision as of 03:27, 2 May 2026
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	\| <span id="cal-1065"></span>'''1065''' \|\| automatic \|\| 1956–59 \|\| 25j · 18,000 vph · 42h \|\| chronometer \|\| GMT-Master \|\| Late-6542 GMT caliber		\| <span id="cal-1065"></span>'''1065''' \|\| automatic \|\| 1956–59 \|\| 25j · 18,000 vph · 42h \|\| chronometer \|\| GMT-Master \|\| Late-6542 GMT caliber
	\|-		\|-
	\| <span id="cal-1530"></span>'''1530''' \|\| automatic \|\| 1957–65 \|\| 25j (early) → 26j (late) · 18,000 vph · 42h \|\| chronometer (post-1958 only) \|\| Submariner, Air-King, Oyster Perpetual \|\| First Submariner appearance on 5510 (1958–59); not chronometer-rated at 5510 launch — chronometer arrived with caliber 1560 on 5512. Jewel-count progression 17 → 25 → 26 across the 5508 run per Bob's. Foundation of the 15xx family; early 5512 / 5513		\| <span id="cal-1530"></span>'''1530''' \|\| automatic \|\| 1957–65 \|\| 25j (early) → 26j (late) · 18,000 vph · 42h \|\| chronometer (post-1958 only) \|\| Submariner, Air-King, Oyster Perpetual \|\| First Submariner appearance on 5510 (1958–59); not chronometer-rated at 5510 launch — chronometer arrived with caliber 1560 on 5512. Jewel-count progression 17 → 25 → 26 across the 5508 run per Bob's. Foundation of the 15xx family; early 5512 / 5513 Powers the 36mm Explorer-case 5504 Air-King 1957/58-1963/64 in parallel with the early 5500 production.
	\|-		\|-
	\| <span id="cal-1520"></span>'''1520''' \|\| automatic \|\| 1963–90 \|\| 17 / 25 / 26j · 19,800 vph · 42h \|\| — \|\| Submariner, Air-King, Oyster Perpetual \|\| Non-chronometer twin; powers late 5513 / 5514 / 5517 Submariners and the long-running 5500 Air-King (1963 onward) / 1002 OP / 5501 / 5520. 17-jewel variant is a US/Canada import-duty-bracket move, not a movement difference		\| <span id="cal-1520"></span>'''1520''' \|\| automatic \|\| 1963–90 \|\| 17 / 25 / 26j · 19,800 vph · 42h \|\| — \|\| Submariner, Air-King, Oyster Perpetual \|\| Non-chronometer twin; powers late 5513 / 5514 / 5517 Submariners and the long-running 5500 Air-King (1963 onward) / 1002 OP / 5501 / 5520. 17-jewel variant is a US/Canada import-duty-bracket move, not a movement difference

Admin: Cal 1030 row: add 6552 first-Air-King-appearance note

2026-05-02T00:08:56Z

Cal 1030 row: add 6552 first-Air-King-appearance note

← Older revision		Revision as of 00:08, 2 May 2026
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	\| <span id="cal-a296"></span>'''A296''' \|\| automatic \|\| 1952–55 \|\| 18j · 18,000 vph · 36h \|\| — \|\| Submariner, Explorer, Oyster Perpetual \|\| Big Crown 6200; Explorer 6098 / 6150 ("Precision") / 6350 (chronometer). 29.5mm. Full-rotor uni-directional Perpetual; the bumper attribution that briefly attached to A296 in earlier articles was dealer-copy contamination from bubble-back geometry confusion (Rolex never produced a bumper caliber). The 1030 that succeeds A296 introduces bidirectional winding via the butterfly rotor and a thinner autowind module — the thickness change is what eliminates the bubble-back caseback profile (Phillips Geneva Watch Auction FOUR lot 146 frames the A296→1030 swap explicitly as a thickness change; Wind Vintage / Eric Ku, ''How Rolex Became Rolex: The Automatic Perpetual Movement Part 2'').		\| <span id="cal-a296"></span>'''A296''' \|\| automatic \|\| 1952–55 \|\| 18j · 18,000 vph · 36h \|\| — \|\| Submariner, Explorer, Oyster Perpetual \|\| Big Crown 6200; Explorer 6098 / 6150 ("Precision") / 6350 (chronometer). 29.5mm. Full-rotor uni-directional Perpetual; the bumper attribution that briefly attached to A296 in earlier articles was dealer-copy contamination from bubble-back geometry confusion (Rolex never produced a bumper caliber). The 1030 that succeeds A296 introduces bidirectional winding via the butterfly rotor and a thinner autowind module — the thickness change is what eliminates the bubble-back caseback profile (Phillips Geneva Watch Auction FOUR lot 146 frames the A296→1030 swap explicitly as a thickness change; Wind Vintage / Eric Ku, ''How Rolex Became Rolex: The Automatic Perpetual Movement Part 2'').
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	\| <span id="cal-1030"></span>'''1030''' \|\| automatic \|\| 1950–62 \|\| 25j · 18,800 vph · 42h \|\| chronometer \|\| Submariner, Explorer, Air-King, Oyster Perpetual \|\| Rolex's first bidirectional automatic; butterfly rotor stamped ROLEX PERPETUAL PATENTED. 28.5 × 5.85mm. First appears on 6098 in 1952; runs across 6536 / 6536-1 / 6538 Submariners and 6610 Explorer. COSC and non-COSC versions on the same caliber		\| <span id="cal-1030"></span>'''1030''' \|\| automatic \|\| 1950–62 \|\| 25j · 18,800 vph · 42h \|\| chronometer \|\| Submariner, Explorer, Air-King, Oyster Perpetual \|\| Rolex's first bidirectional automatic; butterfly rotor stamped ROLEX PERPETUAL PATENTED. 28.5 × 5.85mm. First appears on 6098 in 1952; runs across 6536 / 6536-1 / 6538 Submariners and 6610 Explorer. COSC and non-COSC versions on the same caliber. First Air-King appearance on 6552 (1953–57)
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	\| <span id="cal-1036"></span>'''1036''' \|\| automatic \|\| 1954–59 \|\| 25j · 18,000 vph · 42h \|\| chronometer \|\| GMT-Master \|\| First GMT caliber; bakelite-bezel 6542		\| <span id="cal-1036"></span>'''1036''' \|\| automatic \|\| 1954–59 \|\| 25j · 18,000 vph · 42h \|\| chronometer \|\| GMT-Master \|\| First GMT caliber; bakelite-bezel 6542