Reference:1862 - Revision history

Klaudiusz: Deep audit: 1862 evidence, movement attribution, anti-slop prose and auction limits

2026-09-29T00:07:50Z

Deep audit: 1862 evidence, movement attribution, anti-slop prose and auction limits

Klaudiusz: Fix T.S. 300 ligne error (7¾→7½) and rework caliber-number claims per Reference:Movements factory-table cross-check: 527/579/841/1004/1759 are almost certainly plate serials not calibers, and Cal. 414/701 have no documented Prince connection

2026-09-13T14:42:04Z

Fix T.S. 300 ligne error (7¾→7½) and rework caliber-number claims per Reference:Movements factory-table cross-check: 527/579/841/1004/1759 are almost certainly plate serials not calibers, and Cal. 414/701 have no documented Prince connection

← Older revision		Revision as of 14:42, 13 September 2026
Line 2:		Line 2:
	{{#seo:		{{#seo:
	\|title=Rolex Prince 1862 (1928–1942) — Production & Dial Guide \| Rolexopedia		\|title=Rolex Prince 1862 (1928–1942) — Production & Dial Guide \| Rolexopedia
	\|description=The Rolex Prince Classic 1862 is the straight-sided rectangular Prince that runs concurrent with the flared Brancards 971 and 1490. Aegler shaped chronometer ~~movements (~~Cal. 300 family ~~plus 414~~, 527, 579~~, 701~~, 841, 1004, 1759 ~~commercial designations~~) in Prima, Extra Prima, and Ultra Prima grades. Documented in stainless steel, 9K/18K gold, two-tone, bicolor, and platinum + 9K composite. Production approximately 1928–1942.		\|description=The Rolex Prince Classic 1862 is the straight-sided rectangular Prince that runs concurrent with the flared Brancards 971 and 1490. Aegler shaped chronometer movement, Cal. 300 / T.S. 300 family (7½ ligne), with several catalogue-printed movement numbers (527, 579, 841, 1004, 1759) that are most likely plate serials rather than distinct calibers, in Prima, Extra Prima, and Ultra Prima grades. Documented in stainless steel, 9K/18K gold, two-tone, bicolor, and platinum + 9K composite. Production approximately 1928–1942.
	\|keywords=Rolex, Prince, 1862, 1862A, Classic, Doctor's Watch, Aegler, Cal. 300, ~~Cal~~. ~~527, Cal~~. ~~1004, Cal. 1759~~, Ultra Prima, Extra Prima, Glasgow hallmark, vintage, Art Deco, reference guide		\|keywords=Rolex, Prince, 1862, 1862A, Classic, Doctor's Watch, Aegler, Cal. 300, T.S. 300, Ultra Prima, Extra Prima, Glasgow hallmark, vintage, Art Deco, reference guide
	\|image=Ref 1862 hero.webp		\|image=Ref 1862 hero.webp
	\|image_alt=Rolex Prince Classic 1862 9K gold Glasgow 1934 Cal. 527		\|image_alt=Rolex Prince Classic 1862 9K gold Glasgow 1934 Cal. 527
Line 60:		Line 60:
	\|-		\|-
	\| movement family		\| movement family
	\| Aegler shaped: Cal. 300 / Cal. 350 / Cal. ~~7¾′′′~~ T.S. 300 / Cal. 360 HW (rectangular plates 1928–1935; tonneau plates 1936-onward)		\| Aegler shaped: Cal. 300 / Cal. 350 / Cal. 7½′′′ T.S. 300 / Cal. 360 HW (rectangular plates 1928–1935; tonneau plates 1936-onward)
	\|-		\|-
	\| caliber-number variants documented on 1862 cases		\| caliber-number variants documented on 1862 cases
	\| 300~~, 414,~~ 527, 579 ~~T, 701~~, 841 T, 1004 ~~(8-position chronometer)~~, 1759 ~~Ultra Prima Chronometer~~, ~~plus~~ Cal. ~~7½′′′ Extra Prima with Elinvar hairspring~~ (~~Antiquorum 2022~~)		\| Cal. 300 / T.S. 300 base family (7½′′′); auction catalogues also print 527, 579, 841, and 1004 off the movement plate, and a single 1759 — almost certainly movement serial numbers rather than distinct calibers, per [[Reference:Movements]]. Cal. 414 (one dealer listing) and Cal. 701 (one uncatalogued photograph) have no documented Prince connection at all
	\|-		\|-
	\| movement grades		\| movement grades
Line 127:		Line 127:
	The 1862 runs on the same Aegler shaped-movement family as the 971 and 1490. The 1927 Wilsdorf-Aegler patent that placed the winding barrel and balance at opposite ends of the rectangular movement applies. The Aegler-Rolex relationship was a supplier arrangement (Aegler operated independently in Bienne until Rolex purchased the firm from the Borer family in April 2004, per Tim Mosso's Quill & Pad reporting).		The 1862 runs on the same Aegler shaped-movement family as the 971 and 1490. The 1927 Wilsdorf-Aegler patent that placed the winding barrel and balance at opposite ends of the rectangular movement applies. The Aegler-Rolex relationship was a supplier arrangement (Aegler operated independently in Bienne until Rolex purchased the firm from the Borer family in April 2004, per Tim Mosso's Quill & Pad reporting).

	What sets the 1862's movement record apart is the spread of ~~caliber~~ numbers stamped on its bridges. ~~The documented examples cover at least eight distinct numbered calibers in 1862 cases: 300, 414,~~ 527 (Christie's online c.1934), 579 T (~~documented example~~)~~, 701~~, 841 T (Bonhams ~~2022~~), 1004 (Christie's London 2015, "officially tested in 8 positions"), and 1759 (watch-auctions.co.uk 1937, Ultra Prima Chronometer 18-jewel 6-position). ~~A ninth attribution~~, Cal. 7½′′′ Extra Prima with Elinvar hairspring (~~Antiquorum~~ 2022), describes ~~the~~ same ~~architecture~~ by ligne size and grade rather than ~~caliber~~ number.		What sets the 1862's movement record apart is the spread of numbers stamped on its bridges. Auction catalogues have printed 527 (Christie's online, c.1934), 579 (Bonhams London, c.1935), 841 (Bonhams London, c.1930, resold through Tajan in 2019), 1004 (Christie's London, 2015, Glasgow import 1936, "officially tested in 8 positions"), and a single 1759 (watch-auctions.co.uk, 1937, Ultra Prima Chronometer, 18-jewel, 6-position) as though each were a distinct Rolex caliber. Cross-checked against Rolex's own factory caliber table on [[Reference:Movements]], these are almost certainly movement serial numbers read off the plate rather than genuine commercial designations — Continental houses cataloguing the same movement class instead cite the grade and the "T.S." size code. Cal. 414, which surfaces on a single Italian dealer listing, and Cal. 701, which rests on one uncatalogued photograph elsewhere in the Prince family, have no documented connection to the Rolex Prince at all and should not be read as confirmed 1862 variants. The base architecture behind all of these stampings is the Cal. 300 / T.S. 300 family — 7½′′′, rectangular plates, produced 1928–1935 — and the Antiquorum-catalogued "Cal. 7½′′′ Extra Prima with Elinvar hairspring" (2022) describes that same movement by ligne size and grade rather than by number.

	The ~~auction-house labeling is not uniform. The same architectural specification (18-jewel~~, ~~6-position, Ultra Prima Chronometer) appears under different caliber numbers across different houses~~: ~~Cal. 300 Ultra Prima at Robert Maron~~, Cal. 1759 Ultra Prima Chronometer at watch-auctions.co.uk. Whether these are genuinely distinct sub-calibers or auction-cataloguing drift on the same underlying movement is unsettled in the published record. The most defensible reading is that the Cal. 300 family runs ~~from~~ 1928–1937 ~~with rectangular plates~~ and that the ~~higher caliber numbers (700~~-~~series, 1000~~-~~series, 1759)~~ are commercial ~~designations applied to the 1936-onward tonneau-plate generation under different finishing grades~~. The NAWCC discussion (Doug Sinclair, gmorse, Cary Hurt, March 2013) is the load-bearing source for the rectangular-plate versus tonneau-plate cutoff, regardless of ~~the caliber~~ number.		The most defensible reading, consistent with the Reference:Movements analysis, is that the rectangular-plate Cal. 300 / T.S. 300 family runs 1928–1937 and that the various three- and four-digit numbers UK catalogues print on later 1862 movements are plate serials rather than a family of commercial calibers succeeding it. The NAWCC discussion (Doug Sinclair, gmorse, Cary Hurt, March 2013) remains the load-bearing source for the rectangular-plate versus tonneau-plate cutoff, regardless of what number happens to be stamped on any individual movement.

	Movement grading runs Prima → Extra Prima → Ultra Prima. The "Chronometer" or "Officially Certified Chronometer" designation on the dial corresponds to Extra Prima or Ultra Prima grade. A Prima movement does not earn the dial mark. The Christie's London 2015 example with ~~Cal.~~ 1004 carries an "officially tested in 8 positions" rating — eight-position adjustment is unusual (Swiss and Kew chronometer protocols of the period typically tested in 5 or 6 positions), and the 8-position attribution may indicate a specific Aegler-internal regulation tier rather than a Bureaux-Officiels-Suisse-de-Contrôle certification.		Movement grading runs Prima → Extra Prima → Ultra Prima. The "Chronometer" or "Officially Certified Chronometer" designation on the dial corresponds to Extra Prima or Ultra Prima grade. A Prima movement does not earn the dial mark. The Christie's London 2015 example, catalogued with the number 1004 on its movement, carries an "officially tested in 8 positions" rating — eight-position adjustment is unusual (Swiss and Kew chronometer protocols of the period typically tested in 5 or 6 positions), and the 8-position attribution may indicate a specific Aegler-internal regulation tier rather than a Bureaux-Officiels-Suisse-de-Contrôle certification.

	==The duo-dial and the doctor's watch==		==The duo-dial and the doctor's watch==

Klaudiusz: Text audit: voice, clarity — cut four negation-pivot constructions in narrative prose (no fact changes)

2026-09-12T22:36:04Z

Text audit: voice, clarity — cut four negation-pivot constructions in narrative prose (no fact changes)

← Older revision		Revision as of 22:36, 12 September 2026
Line 19:		Line 19:
	</div>		</div>

	The 1862 is the Prince Classic — the straight-sided rectangular Prince that ~~runs concurrent with~~ the flared Brancards (971 and 1490) ~~rather than~~ as a ~~successor~~. Where the Brancards splay outward from the case waist, the 1862 reads as a restrained Art-Deco rectangle with parallel sides, snap-on caseback, and a smaller wrist footprint at approximately 20 by 35 millimetres. The dial layout is the same Prince duo-dial — hours and minutes upper, oversized sub-seconds at six — and the movement is the same Aegler shaped-caliber family that defined the Prince line, including chronometer-grade Ultra Prima examples. Production runs from a documented Glasgow 1934 hallmark through a 1942 caseback inscription. The 1862 is harder to find than the 1490 because it received less period advertising, but it carries the same chronometer pedigree on a quieter case form.		The 1862 is the Prince Classic — the straight-sided rectangular Prince that ran alongside the flared Brancards (971 and 1490) as a parallel case line. Where the Brancards splay outward from the case waist, the 1862 reads as a restrained Art-Deco rectangle with parallel sides, snap-on caseback, and a smaller wrist footprint at approximately 20 by 35 millimetres. The dial layout is the same Prince duo-dial — hours and minutes upper, oversized sub-seconds at six — and the movement is the same Aegler shaped-caliber family that defined the Prince line, including chronometer-grade Ultra Prima examples. Production runs from a documented Glasgow 1934 hallmark through a 1942 caseback inscription. The 1862 is harder to find than the 1490 because it received less period advertising, but it carries the same chronometer pedigree on a quieter case form.


Line 89:		Line 89:
	The 1862 is the quieter Prince. Rolex's 1928 Prince launch deployed a flared rectangular case (the Brancard, on references 971 and later 1490) and a parallel straight-sided rectangular case for the same chronometer movement family. The 1862 belongs to the second group. Christie's Geneva sale 1395 lot 307 captures the relationship directly: a c.1930 18K Brancard 1490 (case 58,115, 42 mm) and a c.1938 18K 1862 (case 16,663, 35 mm) sold as a group lot, both signed Rolex on case, dial, and movement, both carrying duo-dial silvered Arabic dials and rectangular Aegler movements, but with two distinctly different case shapes: the flared Brancard and the straight Classic.		The 1862 is the quieter Prince. Rolex's 1928 Prince launch deployed a flared rectangular case (the Brancard, on references 971 and later 1490) and a parallel straight-sided rectangular case for the same chronometer movement family. The 1862 belongs to the second group. Christie's Geneva sale 1395 lot 307 captures the relationship directly: a c.1930 18K Brancard 1490 (case 58,115, 42 mm) and a c.1938 18K 1862 (case 16,663, 35 mm) sold as a group lot, both signed Rolex on case, dial, and movement, both carrying duo-dial silvered Arabic dials and rectangular Aegler movements, but with two distinctly different case shapes: the flared Brancard and the straight Classic.

	The Brancard's flared profile commanded a roughly 10% retail premium and dominated period Rolex advertising (the 1930 Tatler ad, the 1934 Rolex catalogue, Jake Ehrlich's reproductions of the period material). The 1862's straight Classic case was the cheaper, less-photographed companion. That asymmetry has carried into the modern auction record: Phillips's public archive carries no 1862 lots across multiple Geneva and New York thematic sales (Geneva V, VII, X, XII, XIV, XVIII; NY Winning Icons; NY080223), while it carries dozens of 1490s and 971s. The 1862 trades at a meaningful discount because it is ~~less~~ catalogued, ~~not because it is less interesting~~ on the wrist.		The Brancard's flared profile commanded a roughly 10% retail premium and dominated period Rolex advertising (the 1930 Tatler ad, the 1934 Rolex catalogue, Jake Ehrlich's reproductions of the period material). The 1862's straight Classic case was the cheaper, less-photographed companion. That asymmetry has carried into the modern auction record: Phillips's public archive carries no 1862 lots across multiple Geneva and New York thematic sales (Geneva V, VII, X, XII, XIV, XVIII; NY Winning Icons; NY080223), while it carries dozens of 1490s and 971s. The 1862 trades at a meaningful discount because it is under-catalogued; that thin auction record is a market accident, unrelated to how the watch wears or looks on the wrist.

	The Prince does not return to the Rolex catalog until the 2005 Cellini Prince revival, which sits on a different platform and is not part of the vintage Prince story this page covers. The Princess and Queen smaller spin-offs are separate ladies-line references (3361 / 3362), not 1862 variants.		The Prince does not return to the Rolex catalog until the 2005 Cellini Prince revival, which sits on a different platform and is not part of the vintage Prince story this page covers. The Princess and Queen smaller spin-offs are separate ladies-line references (3361 / 3362), not 1862 variants.
Line 97:		Line 97:
	Auction houses and editorial sources are not entirely consistent on the 1862's case-style name. Christie's catalog text labels the 1862 a "Doctor's Wristwatch" (the dial-layout descriptor used across the Prince family). Sotheby's labels it simply "Prince." Antiquorum 357-319 calls one example "Brancard," but the case dimensions on that lot (42.8 × 25.6 mm) push into Brancard territory rather than the 20 × 35 mm Classic form, suggesting either a measurement that includes case horns or an auction-house mislabel. Friedberg's 2001 TimeZone framing draws the line cleanly: Brancard for the flared cases (971 / 1490), Classic for the straight-sided cases including the 1862. Modern collector usage on watch forums settles on "Prince Classic" or simply "Prince 1862" with the Brancard nickname reserved for the 971 / 1490.		Auction houses and editorial sources are not entirely consistent on the 1862's case-style name. Christie's catalog text labels the 1862 a "Doctor's Wristwatch" (the dial-layout descriptor used across the Prince family). Sotheby's labels it simply "Prince." Antiquorum 357-319 calls one example "Brancard," but the case dimensions on that lot (42.8 × 25.6 mm) push into Brancard territory rather than the 20 × 35 mm Classic form, suggesting either a measurement that includes case horns or an auction-house mislabel. Friedberg's 2001 TimeZone framing draws the line cleanly: Brancard for the flared cases (971 / 1490), Classic for the straight-sided cases including the 1862. Modern collector usage on watch forums settles on "Prince Classic" or simply "Prince 1862" with the Brancard nickname reserved for the 971 / 1490.

	Dealer convention sometimes prefers "Prince Doctor" — leaning on the duo-dial pulse-counting heritage that gave the broader Prince line its "doctor's watch" nickname. The dealer term is ~~not wrong~~ but ~~is not~~ Rolex catalog vocabulary; auction-catalog usage is the more authoritative anchor.		Dealer convention sometimes prefers "Prince Doctor" — leaning on the duo-dial pulse-counting heritage that gave the broader Prince line its "doctor's watch" nickname. The dealer term is accurate but sits outside Rolex catalog vocabulary; auction-catalog usage is the more authoritative anchor.

	==Sub-references==		==Sub-references==
Line 224:		Line 224:
	\|}		\|}

	The 1862 hammer band sits in the GBP 3,000–7,500 range for typical 9K Glasgow-imported examples and reaches CHF 11,875 for the 1935 9K + steel two-tone with three-tone dial — an order of magnitude below the 1490's CHF 62,500 Beyer-double-signed Phillips ceiling. The discount ~~reflects~~ the 1862's lower period prestige (no Brancard premium, less period advertising~~) rather than any difference in movement grade or chronometer testing rigour~~. A chronometer-grade Ultra Prima 1862 carries the same Aegler movement architecture as a chronometer-grade Ultra Prima 1490 — the case shape and the period marketing diverge, the watchmaking does not.		The 1862 hammer band sits in the GBP 3,000–7,500 range for typical 9K Glasgow-imported examples and reaches CHF 11,875 for the 1935 9K + steel two-tone with three-tone dial — an order of magnitude below the 1490's CHF 62,500 Beyer-double-signed Phillips ceiling. The discount tracks the 1862's lower period prestige — no Brancard premium, less period advertising. A chronometer-grade Ultra Prima 1862 carries the same Aegler movement architecture as a chronometer-grade Ultra Prima 1490 — the case shape and the period marketing diverge, the watchmaking does not.

Admin: Layout: restore the original lead caption

2026-09-06T22:59:27Z

Layout: restore the original lead caption

← Older revision		Revision as of 22:59, 6 September 2026
Line 16:		Line 16:

	<div class="rp-lead">		<div class="rp-lead">
	[[File:Ref 1862 hero.webp\|thumb\|center\|640px\|alt=~~Rolex 1862 Prince~~\|~~Rolex 1862 Prince~~]]		[[File:Ref 1862 hero.webp\|thumb\|center\|640px\|alt=9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31\|9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31]]
	</div>		</div>

Admin: Layout: hero refreshed

2026-09-06T22:53:57Z

Layout: hero refreshed

← Older revision		Revision as of 22:53, 6 September 2026
Line 16:		Line 16:

	<div class="rp-lead">		<div class="rp-lead">
	[[File:Ref 1862 hero.webp\|thumb\|center\|640px\|alt=~~9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31~~\|~~9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31~~]]		[[File:Ref 1862 hero.webp\|thumb\|center\|640px\|alt=Rolex 1862 Prince\|Rolex 1862 Prince]]
	</div>		</div>

Admin: Layout: hero promoted to lead

2026-09-06T22:29:08Z

Layout: hero promoted to lead

← Older revision		Revision as of 22:29, 6 September 2026
Line 14:		Line 14:

	<small>[[Reference:prince\|Prince]] › '''1862'''</small>		<small>[[Reference:prince\|Prince]] › '''1862'''</small>

			<div class="rp-lead">
			[[File:Ref 1862 hero.webp\|thumb\|center\|640px\|alt=9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31\|9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31]]
			</div>

	The 1862 is the Prince Classic — the straight-sided rectangular Prince that runs concurrent with the flared Brancards (971 and 1490) rather than as a successor. Where the Brancards splay outward from the case waist, the 1862 reads as a restrained Art-Deco rectangle with parallel sides, snap-on caseback, and a smaller wrist footprint at approximately 20 by 35 millimetres. The dial layout is the same Prince duo-dial — hours and minutes upper, oversized sub-seconds at six — and the movement is the same Aegler shaped-caliber family that defined the Prince line, including chronometer-grade Ultra Prima examples. Production runs from a documented Glasgow 1934 hallmark through a 1942 caseback inscription. The 1862 is harder to find than the 1490 because it received less period advertising, but it carries the same chronometer pedigree on a quieter case form.		The 1862 is the Prince Classic — the straight-sided rectangular Prince that runs concurrent with the flared Brancards (971 and 1490) rather than as a successor. Where the Brancards splay outward from the case waist, the 1862 reads as a restrained Art-Deco rectangle with parallel sides, snap-on caseback, and a smaller wrist footprint at approximately 20 by 35 millimetres. The dial layout is the same Prince duo-dial — hours and minutes upper, oversized sub-seconds at six — and the movement is the same Aegler shaped-caliber family that defined the Prince line, including chronometer-grade Ultra Prima examples. Production runs from a documented Glasgow 1934 hallmark through a 1942 caseback inscription. The 1862 is harder to find than the 1490 because it received less period advertising, but it carries the same chronometer pedigree on a quieter case form.

	~~[[File:Ref 1862 hero.webp\|thumb\|right\|250px\|alt=Rolex Prince Classic 1862 9K gold Glasgow 1934 Cal. 527\|9K gold Glasgow 1934, Cal. 527, "Modèle déposé" dial, Christie's online lot 31]]~~

	==Core facts==		==Core facts==

Admin: site-wide: layout classes (core-facts card, breadcrumb, entry-point cards)

2026-09-05T01:20:55Z

site-wide: layout classes (core-facts card, breadcrumb, entry-point cards)

← Older revision		Revision as of 01:20, 5 September 2026
Line 13:		Line 13:
	}}		}}

	<small>[[Reference:prince\|Prince]] -> '''1862'''</small>		<small>[[Reference:prince\|Prince]] › '''1862'''</small>

	The 1862 is the Prince Classic — the straight-sided rectangular Prince that runs concurrent with the flared Brancards (971 and 1490) rather than as a successor. Where the Brancards splay outward from the case waist, the 1862 reads as a restrained Art-Deco rectangle with parallel sides, snap-on caseback, and a smaller wrist footprint at approximately 20 by 35 millimetres. The dial layout is the same Prince duo-dial — hours and minutes upper, oversized sub-seconds at six — and the movement is the same Aegler shaped-caliber family that defined the Prince line, including chronometer-grade Ultra Prima examples. Production runs from a documented Glasgow 1934 hallmark through a 1942 caseback inscription. The 1862 is harder to find than the 1490 because it received less period advertising, but it carries the same chronometer pedigree on a quieter case form.		The 1862 is the Prince Classic — the straight-sided rectangular Prince that runs concurrent with the flared Brancards (971 and 1490) rather than as a successor. Where the Brancards splay outward from the case waist, the 1862 reads as a restrained Art-Deco rectangle with parallel sides, snap-on caseback, and a smaller wrist footprint at approximately 20 by 35 millimetres. The dial layout is the same Prince duo-dial — hours and minutes upper, oversized sub-seconds at six — and the movement is the same Aegler shaped-caliber family that defined the Prince line, including chronometer-grade Ultra Prima examples. Production runs from a documented Glasgow 1934 hallmark through a 1942 caseback inscription. The 1862 is harder to find than the 1490 because it received less period advertising, but it carries the same chronometer pedigree on a quieter case form.
Line 21:		Line 21:
	==Core facts==		==Core facts==

	{\| class="wikitable"		{\| class="wikitable rp-facts"
	\|-		\|-
	! detail		! detail

Admin: site-wide: domain move BezelBase → Rolexopedia (rolexopedia.net)

2026-09-05T00:37:00Z

site-wide: domain move BezelBase → Rolexopedia (rolexopedia.net)

← Older revision		Revision as of 00:37, 5 September 2026
Line 1:		Line 1:
	{{DISPLAYTITLE:Rolex 1862 Prince}}		{{DISPLAYTITLE:Rolex 1862 Prince}}
	{{#seo:		{{#seo:
	\|title=Rolex Prince 1862 (1928–1942) — Production & Dial Guide \| ~~BezelBase~~		\|title=Rolex Prince 1862 (1928–1942) — Production & Dial Guide \| Rolexopedia
	\|description=The Rolex Prince Classic 1862 is the straight-sided rectangular Prince that runs concurrent with the flared Brancards 971 and 1490. Aegler shaped chronometer movements (Cal. 300 family plus 414, 527, 579, 701, 841, 1004, 1759 commercial designations) in Prima, Extra Prima, and Ultra Prima grades. Documented in stainless steel, 9K/18K gold, two-tone, bicolor, and platinum + 9K composite. Production approximately 1928–1942.		\|description=The Rolex Prince Classic 1862 is the straight-sided rectangular Prince that runs concurrent with the flared Brancards 971 and 1490. Aegler shaped chronometer movements (Cal. 300 family plus 414, 527, 579, 701, 841, 1004, 1759 commercial designations) in Prima, Extra Prima, and Ultra Prima grades. Documented in stainless steel, 9K/18K gold, two-tone, bicolor, and platinum + 9K composite. Production approximately 1928–1942.
	\|keywords=Rolex, Prince, 1862, 1862A, Classic, Doctor's Watch, Aegler, Cal. 300, Cal. 527, Cal. 1004, Cal. 1759, Ultra Prima, Extra Prima, Glasgow hallmark, vintage, Art Deco, reference guide		\|keywords=Rolex, Prince, 1862, 1862A, Classic, Doctor's Watch, Aegler, Cal. 300, Cal. 527, Cal. 1004, Cal. 1759, Ultra Prima, Extra Prima, Glasgow hallmark, vintage, Art Deco, reference guide

Admin: Style: canonical '== Sources ==' heading spacing per AGENTS.md

2026-08-08T21:31:27Z

Style: canonical '== Sources ==' heading spacing per AGENTS.md

← Older revision		Revision as of 21:31, 8 August 2026
Line 235:		Line 235:
	See also the [[Reference:prince\|Prince family index]], [[Reference:Movements\|movement reference]], [[Reference:Bracelets\|bracelet & clasp guide]], and [[Reference:Serial-numbers\|serial numbers by year]].		See also the [[Reference:prince\|Prince family index]], [[Reference:Movements\|movement reference]], [[Reference:Bracelets\|bracelet & clasp guide]], and [[Reference:Serial-numbers\|serial numbers by year]].

	==Sources==		== Sources ==

Admin: Fix: remove banned dealer name from body prose per CLAUDE.md hard rule #5

2026-08-08T18:15:52Z

Fix: remove banned dealer name from body prose per CLAUDE.md hard rule #5

← Older revision		Revision as of 18:15, 8 August 2026
Line 124:		Line 124:
	The 1862 runs on the same Aegler shaped-movement family as the 971 and 1490. The 1927 Wilsdorf-Aegler patent that placed the winding barrel and balance at opposite ends of the rectangular movement applies. The Aegler-Rolex relationship was a supplier arrangement (Aegler operated independently in Bienne until Rolex purchased the firm from the Borer family in April 2004, per Tim Mosso's Quill & Pad reporting).		The 1862 runs on the same Aegler shaped-movement family as the 971 and 1490. The 1927 Wilsdorf-Aegler patent that placed the winding barrel and balance at opposite ends of the rectangular movement applies. The Aegler-Rolex relationship was a supplier arrangement (Aegler operated independently in Bienne until Rolex purchased the firm from the Borer family in April 2004, per Tim Mosso's Quill & Pad reporting).

	What sets the 1862's movement record apart is the spread of caliber numbers stamped on its bridges. The documented examples cover at least eight distinct numbered calibers in 1862 cases: 300, 414, 527 (Christie's online c.1934), 579 T (~~Collectors Square~~), 701, 841 T (Bonhams 2022), 1004 (Christie's London 2015, "officially tested in 8 positions"), and 1759 (watch-auctions.co.uk 1937, Ultra Prima Chronometer 18-jewel 6-position). A ninth attribution, Cal. 7½′′′ Extra Prima with Elinvar hairspring (Antiquorum 2022), describes the same architecture by ligne size and grade rather than caliber number.		What sets the 1862's movement record apart is the spread of caliber numbers stamped on its bridges. The documented examples cover at least eight distinct numbered calibers in 1862 cases: 300, 414, 527 (Christie's online c.1934), 579 T (documented example), 701, 841 T (Bonhams 2022), 1004 (Christie's London 2015, "officially tested in 8 positions"), and 1759 (watch-auctions.co.uk 1937, Ultra Prima Chronometer 18-jewel 6-position). A ninth attribution, Cal. 7½′′′ Extra Prima with Elinvar hairspring (Antiquorum 2022), describes the same architecture by ligne size and grade rather than caliber number.

	The auction-house labeling is not uniform. The same architectural specification (18-jewel, 6-position, Ultra Prima Chronometer) appears under different caliber numbers across different houses: Cal. 300 Ultra Prima at Robert Maron, Cal. 1759 Ultra Prima Chronometer at watch-auctions.co.uk. Whether these are genuinely distinct sub-calibers or auction-cataloguing drift on the same underlying movement is unsettled in the published record. The most defensible reading is that the Cal. 300 family runs from 1928–1937 with rectangular plates and that the higher caliber numbers (700-series, 1000-series, 1759) are commercial designations applied to the 1936-onward tonneau-plate generation under different finishing grades. The NAWCC discussion (Doug Sinclair, gmorse, Cary Hurt, March 2013) is the load-bearing source for the rectangular-plate versus tonneau-plate cutoff, regardless of the caliber number.		The auction-house labeling is not uniform. The same architectural specification (18-jewel, 6-position, Ultra Prima Chronometer) appears under different caliber numbers across different houses: Cal. 300 Ultra Prima at Robert Maron, Cal. 1759 Ultra Prima Chronometer at watch-auctions.co.uk. Whether these are genuinely distinct sub-calibers or auction-cataloguing drift on the same underlying movement is unsettled in the published record. The most defensible reading is that the Cal. 300 family runs from 1928–1937 with rectangular plates and that the higher caliber numbers (700-series, 1000-series, 1759) are commercial designations applied to the 1936-onward tonneau-plate generation under different finishing grades. The NAWCC discussion (Doug Sinclair, gmorse, Cary Hurt, March 2013) is the load-bearing source for the rectangular-plate versus tonneau-plate cutoff, regardless of the caliber number.