Reference:4220 - Revision history

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

2026-09-05T01:21:32Z

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

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

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

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

2026-09-05T00:37:39Z

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

← Older revision		Revision as of 00:37, 5 September 2026
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	{{DISPLAYTITLE:Rolex 4220 Oyster Perpetual}}		{{DISPLAYTITLE:Rolex 4220 Oyster Perpetual}}
	{{#seo:		{{#seo:
	\|title=Rolex Oyster Perpetual 4220 — Production, Dials & Serial Ranges \| ~~BezelBase~~		\|title=Rolex Oyster Perpetual 4220 — Production, Dials & Serial Ranges \| Rolexopedia
	\|description=The 4220 is the Speedking-line reference most closely associated with the defining 1940s Rolex look: a 30mm stainless steel Oyster, a California…		\|description=The 4220 is the Speedking-line reference most closely associated with the defining 1940s Rolex look: a 30mm stainless steel Oyster, a California…
	\|keywords=Rolex, 4220, Oyster, specifications, reference guide		\|keywords=Rolex, 4220, Oyster, specifications, reference guide

Admin: Fix ligne-mark bold bug on 8 caliber mentions (ASCII apostrophes -> U+2032 primes)

2026-08-08T18:02:10Z

Fix ligne-mark bold bug on 8 caliber mentions (ASCII apostrophes -> U+2032 primes)

← Older revision		Revision as of 18:02, 8 August 2026
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	\| movement		\| movement
	\| Cal. ~~10½'''~~ H (Hunter), 17 jewels, most-cited; also Cal. ~~9¾'''~~ 17j and Cal. 710 15j documented		\| Cal. 10½′′′ H (Hunter), 17 jewels, most-cited; also Cal. 9¾′′′ 17j and Cal. 710 15j documented
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	\| balance		\| balance
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	Three movement specifications appear across documented 4220 examples; Rolex did not run a single caliber the length of the production window.		Three movement specifications appear across documented 4220 examples; Rolex did not run a single caliber the length of the production window.

	Cal. ~~10½'''~~ H (Hunter), 17 jewels is the most commonly cited. Straight-line lever escapement, rhodium-plated, Rolex Patent Superbalance (a two-arm monometallic balance with adjustable mean-timing screws), blued Breguet overcoil hairspring, 18,000 bph. This is the Hunter architecture Rolex ran across its 1940s manual Precision movements, derived from the pre-war 10-ligne base. Adjusted in multiple positions and temperatures; Kew Observatory A-certified examples appear in the auction record and carry a substantial premium.		Cal. 10½′′′ H (Hunter), 17 jewels is the most commonly cited. Straight-line lever escapement, rhodium-plated, Rolex Patent Superbalance (a two-arm monometallic balance with adjustable mean-timing screws), blued Breguet overcoil hairspring, 18,000 bph. This is the Hunter architecture Rolex ran across its 1940s manual Precision movements, derived from the pre-war 10-ligne base. Adjusted in multiple positions and temperatures; Kew Observatory A-certified examples appear in the auction record and carry a substantial premium.

	Cal. ~~9¾'''~~, 17 jewels. Antiquorum cataloging on some 4220 lots lists a 9¾-ligne movement rather than the 10½-ligne Hunter. The 9¾ designation reflects a different ligne sizing on what is functionally the same Hunter-family architecture; both are small Aegler-supplied Rolex manual movements of the same period. Whether the 9¾ attribution is a cataloging convention difference or reflects genuine caliber variation across the run is not clearly resolved in the sources. Either reading is defensible.		Cal. 9¾′′′, 17 jewels. Antiquorum cataloging on some 4220 lots lists a 9¾-ligne movement rather than the 10½-ligne Hunter. The 9¾ designation reflects a different ligne sizing on what is functionally the same Hunter-family architecture; both are small Aegler-supplied Rolex manual movements of the same period. Whether the 9¾ attribution is a cataloging convention difference or reflects genuine caliber variation across the run is not clearly resolved in the sources. Either reading is defensible.

	Cal. 710, 15 jewels. A small number of surviving 4220s carry a Cal. 710, a 15-jewel manual-wind movement that sits outside the Hunter-series architecture. The consensus in the dealer record is that Cal. 710 examples likely reflect service-era replacements rather than original-issue movements: a 4220 that went in for repair at a period when the original Hunter movement was unserviceable and came back with a Cal. 710 donor. The reading is not proven, but the jewel count drop (15 vs. 17) and the architectural difference point toward replacement rather than production variation.		Cal. 710, 15 jewels. A small number of surviving 4220s carry a Cal. 710, a 15-jewel manual-wind movement that sits outside the Hunter-series architecture. The consensus in the dealer record is that Cal. 710 examples likely reflect service-era replacements rather than original-issue movements: a 4220 that went in for repair at a period when the original Hunter movement was unserviceable and came back with a Cal. 710 donor. The reading is not proven, but the jewel count drop (15 vs. 17) and the architectural difference point toward replacement rather than production variation.

	The working position for a 4220 buyer is straightforward. The most period-correct movement is a 17-jewel Hunter, whether catalogued as Cal. ~~10½'''~~ or ~~9¾'''~~. A Cal. 710 is worth a service record to understand. A Kew A-certified Hunter is a premium find and should be priced as one.		The working position for a 4220 buyer is straightforward. The most period-correct movement is a 17-jewel Hunter, whether catalogued as Cal. 10½′′′ or 9¾′′′. A Cal. 710 is worth a service record to understand. A Kew A-certified Hunter is a premium find and should be priced as one.

	<span id="dial-variants"></span>		<span id="dial-variants"></span>
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	Dial and hands as an era marker. The first authentication step on any 4220 is matching dial configuration to hand configuration. California dial with Mercedes hands fits the 1941–1949 window. Arabic, sector, or gilt dial with alpha hands fits the 1950s. California dial with alpha hands, or Arabic dial with Mercedes hands, is a mismatch, either a service-era combination or a cobbled-together watch. Period-correct does not require matching serials between movement and case (Rolex did not run matching serials in this period), but it does require dial-and-hand era coherence.		Dial and hands as an era marker. The first authentication step on any 4220 is matching dial configuration to hand configuration. California dial with Mercedes hands fits the 1941–1949 window. Arabic, sector, or gilt dial with alpha hands fits the 1950s. California dial with alpha hands, or Arabic dial with Mercedes hands, is a mismatch, either a service-era combination or a cobbled-together watch. Period-correct does not require matching serials between movement and case (Rolex did not run matching serials in this period), but it does require dial-and-hand era coherence.

	Movement-caliber verification. Open the caseback, find the caliber engraving. A 17-jewel Hunter (Cal. ~~10½'''~~ H or ~~9¾'''~~) is the period-correct answer. A 15-jewel Cal. 710 is most likely a service replacement and should be priced as such. A movement without the Rolex wordmark, or without the Superbalance designation, is out of period.		Movement-caliber verification. Open the caseback, find the caliber engraving. A 17-jewel Hunter (Cal. 10½′′′ H or 9¾′′′) is the period-correct answer. A 15-jewel Cal. 710 is most likely a service replacement and should be priced as such. A movement without the Rolex wordmark, or without the Superbalance designation, is out of period.

	Case measurement. Thirty millimeters across the mid-case is the working figure. If the dealer listing says 29mm or 28mm, ask which axis. A case genuinely below 30mm by more than a millimeter is more likely a different Precision reference than a small 4220.		Case measurement. Thirty millimeters across the mid-case is the working figure. If the dealer listing says 29mm or 28mm, ask which axis. A case genuinely below 30mm by more than a millimeter is more likely a different Precision reference than a small 4220.

Admin: SEO: clickable title + og:image + timestamps

2026-08-04T00:20:49Z

SEO: clickable title + og:image + timestamps

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	\|modified_time=2026-07-~~18T12~~:52:~~41Z~~		\|modified_time=2026-08-04T00:12:19Z
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Admin: SEO: clickable title + og:image + timestamps

2026-08-04T00:12:19Z

SEO: clickable title + og:image + timestamps

← Older revision		Revision as of 00:12, 4 August 2026
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	{{DISPLAYTITLE:Rolex 4220 Oyster Perpetual}}		{{DISPLAYTITLE:Rolex 4220 Oyster Perpetual}}
	{{#seo:		{{#seo:
	\|title=Rolex Oyster Perpetual 4220 — Production, Dials & Serial Ranges \| BezelBase		\|title=Rolex Oyster Perpetual 4220 — Production, Dials & Serial Ranges \| BezelBase
	\|description=The 4220 is the Speedking-line reference most closely associated with the defining 1940s Rolex look: a 30mm stainless steel Oyster, a California…		\|description=The 4220 is the Speedking-line reference most closely associated with the defining 1940s Rolex look: a 30mm stainless steel Oyster, a California…
	\|keywords=Rolex, 4220, Oyster, specifications, reference guide		\|keywords=Rolex, 4220, Oyster, specifications, reference guide
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	\|modified_time=2026-06-~~29T01~~:19:~~39Z~~		\|modified_time=2026-07-18T12:52:41Z
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Klaudiusz: Internal linking: related references + component links

2026-07-18T12:52:41Z

Internal linking: related references + component links

← Older revision		Revision as of 12:52, 18 July 2026
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	Price anchoring. The indexed market runs roughly $1,300–$3,500 for standard configurations, higher for California dials and Kew A examples. The Bonhams £1,152 result sits in the middle of that. A 4220 priced above $5,000 wants an exceptional California dial, Kew A provenance, or some other specific lever; a plain 4220 at five figures is out of step with the surfaced record.		Price anchoring. The indexed market runs roughly $1,300–$3,500 for standard configurations, higher for California dials and Kew A examples. The Bonhams £1,152 result sits in the middle of that. A 4220 priced above $5,000 wants an exceptional California dial, Kew A provenance, or some other specific lever; a plain 4220 at five figures is out of step with the surfaced record.


			== Related references ==

			* [[Reference:2136\|Oyster Perpetual 2136]]
			* [[Reference:2574\|Oyster Perpetual 2574]]
			* [[Reference:3139\|Oyster Perpetual 3139]] — 1938–1947
			* [[Reference:3359\|Oyster Perpetual 3359]] — 1934–1946
			* [[Reference:5701\|Oyster Perpetual 5701]] — 1959–1988

			See also the [[Reference:Movements\|movement reference]], [[Reference:Bracelets\|bracelet & clasp guide]], and [[Reference:Serial-numbers\|serial numbers by year]].

	== Sources ==		== Sources ==

Admin: SEO: clickable title + og:image + timestamps

2026-06-29T01:21:01Z

SEO: clickable title + og:image + timestamps

← Older revision		Revision as of 01:21, 29 June 2026
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	\|modified_time=2026-06-~~04T04~~:40:~~43Z~~		\|modified_time=2026-06-29T01:19:39Z
	\|robots=index,follow,max-image-preview:large		\|robots=index,follow,max-image-preview:large
	}}		}}

Admin: SEO: clickable title + og:image + timestamps

2026-06-29T01:19:39Z

SEO: clickable title + og:image + timestamps

← Older revision		Revision as of 01:19, 29 June 2026
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	{{DISPLAYTITLE:Rolex 4220 Oyster Perpetual}}		{{DISPLAYTITLE:Rolex 4220 Oyster Perpetual}}
	{{#seo:		{{#seo:
	\|title=Rolex ~~4220~~ Oyster Perpetual — Production, ~~Dial Variants,~~ Serial Ranges \| BezelBase		\|title=Rolex Oyster Perpetual 4220 — Production, Dials & Serial Ranges \| BezelBase
	\|description=The 4220 is the Speedking-line reference most closely associated with the defining 1940s Rolex look: a 30mm stainless steel Oyster, a California…		\|description=The 4220 is the Speedking-line reference most closely associated with the defining 1940s Rolex look: a 30mm stainless steel Oyster, a California…
	\|keywords=Rolex, 4220, Oyster, specifications, reference guide		\|keywords=Rolex, 4220, Oyster, specifications, reference guide
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	\|published_time=2026-04-17T22:13:58Z		\|published_time=2026-04-17T22:13:58Z
	\|modified_time=2026-04-~~29T02~~:49:~~22Z~~		\|modified_time=2026-06-04T04:40:43Z
	\|robots=index,follow,max-image-preview:large		\|robots=index,follow,max-image-preview:large
	}}		}}

Admin: SEO: capitalize schema.org @type to "Article" for rich-result eligibility

2026-06-04T04:40:43Z

SEO: capitalize schema.org @type to "Article" for rich-result eligibility

← Older revision		Revision as of 04:40, 4 June 2026
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	\|image=Ref 4220 hero.webp		\|image=Ref 4220 hero.webp
	\|image_alt=Rolex 4220 Speedking Precision 1946 sunburst		\|image_alt=Rolex 4220 Speedking Precision 1946 sunburst
	\|type=~~article~~		\|type=Article
	\|og_type=article		\|og_type=article
	\|published_time=2026-04-17T22:13:58Z		\|published_time=2026-04-17T22:13:58Z

Admin: Remove Category:Working Draft — published pre-2020 in-scope reference

2026-05-31T02:07:30Z

Remove Category:Working Draft — published pre-2020 in-scope reference

← Older revision		Revision as of 02:07, 31 May 2026
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	[[Category:Oyster]]		[[Category:Oyster]]
	~~[[Category:Working Draft]]~~