Reference:6150 - Revision history

Admin: Resize hero: 340px -> 250px

2026-04-30T04:22:31Z

Resize hero: 340px -> 250px

← Older revision		Revision as of 04:22, 30 April 2026
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	<span id="core-facts"></span>		<span id="core-facts"></span>

	[[File:Ref 6150 hero.webp\|thumb\|right\|~~340px~~\|alt=Rolex Explorer 6150 — gilt dial with 3-6-9 layout\|Rolex Explorer 6150 — gilt dial with 3-6-9 layout]]		[[File:Ref 6150 hero.webp\|thumb\|right\|250px\|alt=Rolex Explorer 6150 — gilt dial with 3-6-9 layout\|Rolex Explorer 6150 — gilt dial with 3-6-9 layout]]

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

Admin: Fix 6150 opening: A296→1030 transition is uni-directional thick → bidirectional slim, not bumper-to-rotor

2026-04-29T23:46:17Z

Fix 6150 opening: A296→1030 transition is uni-directional thick → bidirectional slim, not bumper-to-rotor

← Older revision		Revision as of 23:46, 29 April 2026
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	== Where it sits in the line ==		== Where it sits in the line ==

	The 6150 sits between the 6098 (1952, chronometer-rated) and the 6350 (1953–55, chronometer-rated, Explorer-named). All three reference numbers run the same caliber A296 and share the 36mm Oyster case; they differ in chronometer status and dial wording. The 6098 reads "Officially Certified Chronometer." The 6150 reads "Precision" — same caliber, no chronometer pass. The 6350 reads "Explorer" alongside "Officially Certified Chronometer" and is the first reference where the Explorer name lands on the production dial. The 6610 (1955–59) succeeds the 6150 / 6350 cluster~~, drops~~ the ~~bumper~~-rotor architecture ~~for~~ the ~~slimmer full~~-~~rotor caliber 1030,~~ and finally settles the modern Explorer dial layout.		The 6150 sits between the 6098 (1952, chronometer-rated) and the 6350 (1953–55, chronometer-rated, Explorer-named). All three reference numbers run the same caliber A296 and share the 36mm Oyster case; they differ in chronometer status and dial wording. The 6098 reads "Officially Certified Chronometer." The 6150 reads "Precision" — same caliber, no chronometer pass. The 6350 reads "Explorer" alongside "Officially Certified Chronometer" and is the first reference where the Explorer name lands on the production dial. The 6610 (1955–59) succeeds the 6150 / 6350 cluster with the slimmer bidirectional caliber 1030 — the butterfly-rotor architecture that succeeds the thicker uni-directional A296 — and finally settles the modern Explorer dial layout.

	The Vintage Rolex Field Manual describes the 6150 and the 6610 as "indistinguishable from one another" except for the movement (A296 vs. 1030) and the flatter caseback on the 6610. The 6150's bubble-back caseback is the cleanest visual differentiator from the slimmer 6610 case. The Field Manual also documents Explorer-adjacent reference numbers from the same period (6298, 6299, 8044, 8045, 1427) that share the 36mm case and chronometer ambitions across both A296 and caliber 1030 architectures — none carry the Explorer name on the dial, but the surrounding reference cluster shows how broadly Rolex was experimenting with the 36mm tool-watch niche in 1952–1955.		The Vintage Rolex Field Manual describes the 6150 and the 6610 as "indistinguishable from one another" except for the movement (A296 vs. 1030) and the flatter caseback on the 6610. The 6150's bubble-back caseback is the cleanest visual differentiator from the slimmer 6610 case. The Field Manual also documents Explorer-adjacent reference numbers from the same period (6298, 6299, 8044, 8045, 1427) that share the 36mm case and chronometer ambitions across both A296 and caliber 1030 architectures — none carry the Explorer name on the dial, but the surrounding reference cluster shows how broadly Rolex was experimenting with the 36mm tool-watch niche in 1952–1955.

Admin: Resolve A296 bumper-vs-full-rotor: A296 is full-rotor uni-directional per Phillips CH080216/146 + Wind Vintage Eric Ku Part 2 + watchdoctor.biz registry; bumper attribution was dealer-copy contamination from bubble-back geometry confusion

2026-04-29T23:32:18Z

Resolve A296 bumper-vs-full-rotor: A296 is full-rotor uni-directional per Phillips CH080216/146 + Wind Vintage Eric Ku Part 2 + watchdoctor.biz registry; bumper attribution was dealer-copy contamination from bubble-back geometry confusion

← Older revision		Revision as of 23:32, 29 April 2026
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	The 6150-specific movement configuration is the absence of chronometer pass. The same A296 in the 6350 was fine-tuned and adjusted to chronometer standards, earning the OCC dial line. The 6150's A296 does not carry that adjustment.		The 6150-specific movement configuration is the absence of chronometer pass. The same A296 in the 6350 was fine-tuned and adjusted to chronometer standards, earning the OCC dial line. The 6150's A296 does not carry that adjustment.

	~~The bumper-vs-~~full-rotor ~~question on~~ A296 ~~is unresolved across~~ the ~~published literature. Some Explorer references read A296 as~~ a bumper-~~style~~ automatic ~~that the~~ caliber 1030 ~~superseded;~~ the ~~watchdoctor.biz registry~~ and ~~Rolex Forums read A296~~ as ~~full-rotor. Both readings are on record~~; ~~the resolution sits with Colin A. White~~'s ''~~Vintage~~ Rolex ~~Field Manual'~~'.		A296 is a full-rotor uni-directional Perpetual, not a bumper. The architecture confusion that briefly attached to A296 traces to the bubble-back caseback geometry — the thicker autowind module the A-series carried, not a bumper rotor system — and to dealer copy that conflated mid-1950s automatic watchmaking generally with bumper-era movements. Rolex never produced a bumper caliber. The 1030 that succeeds A296 introduces bidirectional winding (the butterfly rotor) and a thinner module, which is what eliminates the bubble-back 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)'' dates Rolex's first bidirectional winding to the 1030).

	<span id="dial-map"></span>		<span id="dial-map"></span>

Admin: Text audit: voice, clarity, source links

2026-04-29T23:23:09Z

Text audit: voice, clarity, source links

Admin: Audit: strip banned dealer names from prose lists per CLAUDE.md hard rule #5

2026-04-29T22:47:47Z

Audit: strip banned dealer names from prose lists per CLAUDE.md hard rule #5

← Older revision		Revision as of 22:47, 29 April 2026
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	<small>[[Reference:explorer\|Explorer]] -> '''6150'''</small>		<small>[[Reference:explorer\|Explorer]] -> '''6150'''</small>

	The 6150 is where the Explorer line begins, in the qualified sense — it carries the 36mm Oyster case, the A296 caliber, and the 3-6-9 chapter-ring dial that will define the Explorer, but it predates the Explorer name on the dial. Caliber A296 in non-chronometer configuration; "Precision" wording on the lower half of most dials; a small subset of late-run examples carry the "Explorer" wording above "Precision" — the transitional configuration sometimes called "Pre-Explorer with Explorer signature" in collector literature. The 6150's documented expedition pedigree runs through Kangchenjunga 1955, not Everest 1953 —		The 6150 is where the Explorer line begins, in the qualified sense — it carries the 36mm Oyster case, the A296 caliber, and the 3-6-9 chapter-ring dial that will define the Explorer, but it predates the Explorer name on the dial. Caliber A296 in non-chronometer configuration; "Precision" wording on the lower half of most dials; a small subset of late-run examples carry the "Explorer" wording above "Precision" — the transitional configuration sometimes called "Pre-Explorer with Explorer signature" in collector literature. The 6150's documented expedition pedigree runs through Kangchenjunga 1955, not Everest 1953 —

	<span id="core-facts"></span>		<span id="core-facts"></span>
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	* [https://www.fratellowatches.com/pre-icon-models-the-rolex-references-that-laid-the-groundwork/ Pre-Icon Models: The Rolex References That Laid the Groundwork] (Fratello, 2024)		* [https://www.fratellowatches.com/pre-icon-models-the-rolex-references-that-laid-the-groundwork/ Pre-Icon Models: The Rolex References That Laid the Groundwork] (Fratello, 2024)
	* [https://www.rolex.org/about-rolex/exploration/everest 70 Years of Rolex on Everest] (Rolex Newsroom)		* [https://www.rolex.org/about-rolex/exploration/everest 70 Years of Rolex on Everest] (Rolex Newsroom)
	* [https://www.everestbands.com/blogs/news/the-truth-about-the-1953-rolex-everest-expedition-the-smiths-de-luxe-and-the-rolex-oyster-perpetual The Truth About the 1953 Rolex Everest Expedition] (~~Everest~~ Bands)		* [https://www.everestbands.com/blogs/news/the-truth-about-the-1953-rolex-everest-expedition-the-smiths-de-luxe-and-the-rolex-oyster-perpetual The Truth About the 1953 Rolex Everest Expedition] (Bands)
	* [https://www.thewatchcollectorsclub.com/blog/the-rolex-explorer-everest-controversy/ The Rolex Explorer Everest Controversy] (The Watch Collectors' Club)		* [https://www.thewatchcollectorsclub.com/blog/the-rolex-explorer-everest-controversy/ The Rolex Explorer Everest Controversy] (The Watch Collectors' Club)
	* [https://www.acollectedman.com/blogs/journal/why-the-pre-explorer-rolex-might-be-the-most-interesting-explorer Why the Pre-Explorer Rolex Might Be the Most Interesting Explorer] (A Collected Man)		* [https://www.acollectedman.com/blogs/journal/why-the-pre-explorer-rolex-might-be-the-most-interesting-explorer Why the Pre-Explorer Rolex Might Be the Most Interesting Explorer] (A Collected Man)

Admin: Audit: strip research-scaffold corpus tokens (surveyed corpus, auction-house corpus, consulted source) — reader-facing rephrase

2026-04-29T21:44:15Z

Audit: strip research-scaffold corpus tokens (surveyed corpus, auction-house corpus, consulted source) — reader-facing rephrase

← Older revision		Revision as of 21:44, 29 April 2026
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	The 6150 runs caliber A296. Specifications converge across the auction-house catalogs and the movement registries at full-rotor self-winding (not bumper), 29.5mm diameter (~13 lignes), 18 jewels, with the architecture used across Rolex catalog reference numbers 765, 775, and the Explorer 6098 / 6150 / 6350. The "bumper" association sometimes attached to A296 traces to the bubble-back caseback geometry rather than to the rotor system. The Rolex Forums A296 thread describes A296 as a "10.5-ligne version of a 635/645… uses a double spring hookup on the autowind and is shock resistant" — forum-level architecture detail, treat as inferred until corroborated against a service manual.		The 6150 runs caliber A296. Specifications converge across the auction-house catalogs and the movement registries at full-rotor self-winding (not bumper), 29.5mm diameter (~13 lignes), 18 jewels, with the architecture used across Rolex catalog reference numbers 765, 775, and the Explorer 6098 / 6150 / 6350. The "bumper" association sometimes attached to A296 traces to the bubble-back caseback geometry rather than to the rotor system. The Rolex Forums A296 thread describes A296 as a "10.5-ligne version of a 635/645… uses a double spring hookup on the autowind and is shock resistant" — forum-level architecture detail, treat as inferred until corroborated against a service manual.

	A260, the smaller sister caliber used on the early Submariner refs 6202 / 6204 / 6205, sits at 26.4mm (~11.5 lignes) and was developed in parallel — A260 for the thinner Submariner cases, A296 for the bubble-back Explorer line. Both are full-rotor self-winding 18-jewel calibers; the size difference is the principal distinction. Beat rate (vph) is not stated in the ~~surveyed~~ editorial ~~corpus~~; likely 18,000 vph based on era and architecture, but no service-manual citation has surfaced.		A260, the smaller sister caliber used on the early Submariner refs 6202 / 6204 / 6205, sits at 26.4mm (~11.5 lignes) and was developed in parallel — A260 for the thinner Submariner cases, A296 for the bubble-back Explorer line. Both are full-rotor self-winding 18-jewel calibers; the size difference is the principal distinction. Beat rate (vph) is not stated in the editorial coverage; likely 18,000 vph based on era and architecture, but no service-manual citation has surfaced.

	The 6150-specific movement configuration is the absence of chronometer pass. The same A296 in the 6350 was fine-tuned and adjusted to chronometer standards, earning the OCC dial line. The 6150's A296 does not carry that adjustment.		The 6150-specific movement configuration is the absence of chronometer pass. The same A296 in the 6350 was fine-tuned and adjusted to chronometer standards, earning the OCC dial line. The 6150's A296 does not carry that adjustment.
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	=== Honeycomb / Blackout (rare) ===		=== Honeycomb / Blackout (rare) ===

	Honeycomb dials surface on the 6150 but at much lower frequency than on the 6350. A specialist dealer lists a "6150 Honeycomb 'Blackout' Radium Dial" example, and a handful of dealer listings reference honeycomb 6150s, but no major-house auction lot in ~~the surveyed corpus~~ surfaced a honeycomb 6150 with photographic confirmation. The 6150 is overwhelmingly a glossy-gilt or matte-gilt smooth-finish reference. Honeycomb is the 6350 signature, common-but-not-majority on the 6098, and rare-to-marginal on the 6150.		Honeycomb dials surface on the 6150 but at much lower frequency than on the 6350. A specialist dealer lists a "6150 Honeycomb 'Blackout' Radium Dial" example, and a handful of dealer listings reference honeycomb 6150s, but no major-house auction lot in documented examples surfaced a honeycomb 6150 with photographic confirmation. The 6150 is overwhelmingly a glossy-gilt or matte-gilt smooth-finish reference. Honeycomb is the 6350 signature, common-but-not-majority on the 6098, and rare-to-marginal on the 6150.

	<span id="case-bezel-crystal-and-crown"></span>		<span id="case-bezel-crystal-and-crown"></span>

Admin: Slop Cop scrub: strip represents/serves as/stands as/constitutes/encompasses, establishes, reflects, fundamentally, completely different/distinct, pivotal, robust, essentially, AI section-title patterns + transitional connectives. Per CLAUDE.md WRITING_STYLE.md banlist + user feedback on AI cadence.

2026-04-29T16:42:10Z

Slop Cop scrub: strip represents/serves as/stands as/constitutes/encompasses, establishes, reflects, fundamentally, completely different/distinct, pivotal, robust, essentially, AI section-title patterns + transitional connectives. Per CLAUDE.md WRITING_STYLE.md banlist + user feedback on AI cadence.

← Older revision		Revision as of 16:42, 29 April 2026
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	The 6150 trades in three tiers. Kangchenjunga-engraved expedition examples sit at the top — Phillips's CHF 200,000 result for the George Band 6150 is the modern-era benchmark and ~~reflects~~ provenance more than reference rarity. Royal Navy H.S.10 CD military-issue examples populate a separate niche on fabric-strap configuration; the Bonhams 2011 H.S.10 CD result of GBP 8,400 anchors the lower military-provenance band. Standard civilian "Precision" examples in clean condition sit roughly GBP 15,000–25,000 across the major houses. The "Explorer Precision" transitional dial commands a premium when authenticated; documented examples sit in the upper-middle of the standard market.		The 6150 trades in three tiers. Kangchenjunga-engraved expedition examples sit at the top — Phillips's CHF 200,000 result for the George Band 6150 is the modern-era benchmark and shows provenance more than reference rarity. Royal Navy H.S.10 CD military-issue examples populate a separate niche on fabric-strap configuration; the Bonhams 2011 H.S.10 CD result of GBP 8,400 anchors the lower military-provenance band. Standard civilian "Precision" examples in clean condition sit roughly GBP 15,000–25,000 across the major houses. The "Explorer Precision" transitional dial commands a premium when authenticated; documented examples sit in the upper-middle of the standard market.

	== Sources ==		== Sources ==

Admin: Round-2 scrub: strip remaining hammer/auction-price wording from body prose. Auction record stays in dedicated section.

2026-04-29T15:30:12Z

Round-2 scrub: strip remaining hammer/auction-price wording from body prose. Auction record stays in dedicated section.

← Older revision		Revision as of 15:30, 29 April 2026
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	Tenzing Norgay is variously claimed in dealer-side editorial to have worn a 6098 prototype on the climb. Some Phillips and Sotheby's editorial pieces frame the Tenzing watch as "a prototype of this watch [6150]," but no surviving Tenzing watch has been authenticated as a 6150. Rolex did supply expedition watches to the 1953 Everest team for accuracy testing; these were chronometer-rated reference 6098s, returned to Rolex post-expedition for accuracy data.		Tenzing Norgay is variously claimed in dealer-side editorial to have worn a 6098 prototype on the climb. Some Phillips and Sotheby's editorial pieces frame the Tenzing watch as "a prototype of this watch [6150]," but no surviving Tenzing watch has been authenticated as a 6150. Rolex did supply expedition watches to the 1953 Everest team for accuracy testing; these were chronometer-rated reference 6098s, returned to Rolex post-expedition for accuracy data.

	The clearer expedition-watch story for the 6150 is Kangchenjunga 1955, not Everest 1953. Phillips Geneva Watch Auction SIX (10 November 2017) lot 244 sold George Band's caseback-engraved 6150 (case 945,021, "KANGCHENJUNGA 1955 G.C BAND") for CHF 200,000 ~~hammer against a CHF 50,000–80,000 estimate~~. Phillips Perpetual handled Tony Streather's 6150 from the same 1955 expedition by private treaty in 2024. Both watches were drawn from existing Rolex case stock dating to 1953.		The clearer expedition-watch story for the 6150 is Kangchenjunga 1955, not Everest 1953. Phillips Geneva Watch Auction SIX (10 November 2017) lot 244 sold George Band's caseback-engraved 6150 (case 945,021, "KANGCHENJUNGA 1955 G.C BAND") for CHF 200,000. Phillips Perpetual handled Tony Streather's 6150 from the same 1955 expedition by private treaty in 2024. Both watches were drawn from existing Rolex case stock dating to 1953.

	Net for the article: drop or heavily qualify any "Hillary's actual Explorer" framing. The 6150's expedition pedigree runs through the 1955 British Kangchenjunga team (Band, Streather), not Hillary or Tenzing on Everest.		Net for the article: drop or heavily qualify any "Hillary's actual Explorer" framing. The 6150's expedition pedigree runs through the 1955 British Kangchenjunga team (Band, Streather), not Hillary or Tenzing on Everest.

Admin: Strip auction prices/hammer wording from intros and prose body per CLAUDE.md hard rule #10 + user feedback. Auction record stays in dedicated section. Replace "hammered at"→"sold for" / "hammer"→"sale" in remaining prose.

2026-04-29T14:58:47Z

Strip auction prices/hammer wording from intros and prose body per CLAUDE.md hard rule #10 + user feedback. Auction record stays in dedicated section. Replace "hammered at"→"sold for" / "hammer"→"sale" in remaining prose.

← Older revision		Revision as of 14:58, 29 April 2026
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	<small>[[Reference:explorer\|Explorer]] -> '''6150'''</small>		<small>[[Reference:explorer\|Explorer]] -> '''6150'''</small>

	The 6150 is where the Explorer line begins, in the qualified sense — it carries the 36mm Oyster case, the A296 caliber, and the 3-6-9 chapter-ring dial that will define the Explorer, but it predates the Explorer name on the dial. Caliber A296 in non-chronometer configuration; "Precision" wording on the lower half of most dials; a small subset of late-run examples carry the "Explorer" wording above "Precision" — the transitional configuration sometimes called "Pre-Explorer with Explorer signature" in collector literature. The 6150's documented expedition pedigree runs through Kangchenjunga 1955, not Everest 1953 — ~~Phillips sold George Band's caseback-engraved Kangchenjunga 6150 (case 945,021) for CHF 200,000 hammer in 2017.~~		The 6150 is where the Explorer line begins, in the qualified sense — it carries the 36mm Oyster case, the A296 caliber, and the 3-6-9 chapter-ring dial that will define the Explorer, but it predates the Explorer name on the dial. Caliber A296 in non-chronometer configuration; "Precision" wording on the lower half of most dials; a small subset of late-run examples carry the "Explorer" wording above "Precision" — the transitional configuration sometimes called "Pre-Explorer with Explorer signature" in collector literature. The 6150's documented expedition pedigree runs through Kangchenjunga 1955, not Everest 1953 —

	<span id="core-facts"></span>		<span id="core-facts"></span>

Admin: Trim dealer/source name-drops in prose per CLAUDE.md hard rule #5 + user feedback. Strip "Bob's, SwissWatchExpo, HQ Milton, Wind Vintage, Hairspring, Bulang, Tropical Watch, Loupe This, Vintage Gold Watches, Craft and Tailored, OBW Collection, Wound For Life, Lange Dyk, Everest Bands, Gray & Sons, Bernard Watch, Exquisite Timepieces, Doc Watches, davidsw, drsd, Watchprosite, Wrist Icons, Goldammer, Mauri DeAngelis, etc." from prose body. Keep facts. Source list at bottom unchanged.

2026-04-29T13:38:18Z

Trim dealer/source name-drops in prose per CLAUDE.md hard rule #5 + user feedback. Strip "Bob's, SwissWatchExpo, HQ Milton, Wind Vintage, Hairspring, Bulang, Tropical Watch, Loupe This, Vintage Gold Watches, Craft and Tailored, OBW Collection, Wound For Life, Lange Dyk, Everest Bands, Gray & Sons, Bernard Watch, Exquisite Timepieces, Doc Watches, davidsw, drsd, Watchprosite, Wrist Icons, Goldammer, Mauri DeAngelis, etc." from prose body. Keep facts. Source list at bottom unchanged.

← Older revision		Revision as of 23:23, 29 April 2026
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	<small>[[Reference:explorer\|Explorer]] -> '''6150'''</small>		<small>[[Reference:explorer\|Explorer]] -> '''6150'''</small>

	The 6150 is where the Explorer line begins, in the qualified sense — it carries the 36mm Oyster case, the A296 caliber, and the 3-6-9 chapter-ring dial that will define the Explorer, but it predates the Explorer name on the dial. Caliber A296 in non-chronometer configuration; "Precision" wording on the lower half of most dials; a small subset of late-run examples carry the "Explorer" wording above "Precision" — the transitional configuration sometimes called "Pre-Explorer with Explorer signature" in collector literature. The 6150's documented expedition pedigree runs through Kangchenjunga 1955, not Everest 1953 —		The 6150 is where the Explorer line begins, in the qualified sense — it carries the 36mm Oyster case, the A296 caliber, and the 3-6-9 chapter-ring dial that will define the Explorer, but it predates the Explorer name on the dial. Caliber A296 in non-chronometer configuration; "Precision" wording on the lower half of most dials; a small subset of late-run examples carry the "Explorer" wording above "Precision" — the transitional configuration sometimes called "Pre-Explorer with Explorer signature" in collector literature. The 6150's documented expedition pedigree runs through Kangchenjunga 1955, not Everest 1953.

	<span id="core-facts"></span>		<span id="core-facts"></span>
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	Documented case-number anchors from the auction record: 931,134 (Sotheby's 2025 H.S.10 CD Royal Navy, c.1953); 944,811 (Bonhams H.S.10 CD, Feb 1953); 944,925 (Antiquorum, 1953); 944,995 (Antiquorum 2006 Mondani); 945,021 (Phillips 2017, George Band Kangchenjunga); 945,096 (Sotheby's 2022 / 2024). All sit in a tight 931K–945K window — a short, mostly-1953 run with later examples (per dealer narratives) trickling out into 1955–1956 as remaining cases were assembled. The 1955 Kangchenjunga gifts to Streather and Band were drawn from this same band, suggesting Rolex held existing case stock back rather than continuing case production for years. The "until 1959" claim is unsupported by the case-number evidence and likely a re-tread of the 6610 transition date applied to the 6150.		Documented case-number anchors from the auction record: 931,134 (Sotheby's 2025 H.S.10 CD Royal Navy, c.1953); 944,811 (Bonhams H.S.10 CD, Feb 1953); 944,925 (Antiquorum, 1953); 944,995 (Antiquorum 2006 Mondani); 945,021 (Phillips 2017, George Band Kangchenjunga); 945,096 (Sotheby's 2022 / 2024). All sit in a tight 931K–945K window — a short, mostly-1953 run with later examples (per dealer narratives) trickling out into 1955–1956 as remaining cases were assembled. The 1955 Kangchenjunga gifts to Streather and Band were drawn from this same band, suggesting Rolex held existing case stock back rather than continuing case production for years. The "until 1959" claim is unsupported by the case-number evidence and likely a re-tread of the 6610 transition date applied to the 6150.

	~~Net for the article: cite the contradiction inline.~~ The case-number evidence supports a 1953-concentrated run with a 1955–56 tail~~; the~~ 1959 endpoint is dealer narrative without serial-anchor support.		The case-number evidence supports a 1953-concentrated run with a 1955–56 tail. The 1959 endpoint is dealer narrative without serial-anchor support.

	<span id="movement-notes"></span>		<span id="movement-notes"></span>
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	The 6150-specific movement configuration is the absence of chronometer pass. The same A296 in the 6350 was fine-tuned and adjusted to chronometer standards, earning the OCC dial line. The 6150's A296 does not carry that adjustment.		The 6150-specific movement configuration is the absence of chronometer pass. The same A296 in the 6350 was fine-tuned and adjusted to chronometer standards, earning the OCC dial line. The 6150's A296 does not carry that adjustment.

	The bumper-vs-full-rotor question on A296 is unresolved across the ~~surveyed sources~~. ~~The 6610 article reads~~ A296 as a bumper-style automatic that the caliber 1030 superseded; the watchdoctor.biz registry and Rolex Forums read A296 as full-rotor. ~~Capture as a contradiction~~; ~~resolve against~~ Colin A. White's ''Vintage Rolex Field Manual'' ~~before publishing as fact in either direction~~.		The bumper-vs-full-rotor question on A296 is unresolved across the published literature. Some Explorer references read A296 as a bumper-style automatic that the caliber 1030 superseded; the watchdoctor.biz registry and Rolex Forums read A296 as full-rotor. Both readings are on record; the resolution sits with Colin A. White's ''Vintage Rolex Field Manual''.

	<span id="dial-map"></span>		<span id="dial-map"></span>
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	=== "Precision" dial (standard) ===		=== "Precision" dial (standard) ===

	The dominant 6150 dial. Glossy black ground with gilt printing, 3-6-9 chapter ring, "Oyster Perpetual" above the centre, and "Precision" beneath the centre. No Explorer marking. The Bonhams Pre-Explorer lots and the Antiquorum 2021 / 2022 examples (case 944,925) all confirm "Oyster Perpetual / Precision" without Explorer signature on the dominant 6150 configuration. ~~listing reads a~~ "Swiss only" Precision dial as ~~"amongst~~ the ~~very~~ first Explorer-configuration dials."		The dominant 6150 dial. Glossy black ground with gilt printing, 3-6-9 chapter ring, "Oyster Perpetual" above the centre, and "Precision" beneath the centre. No Explorer marking. The Bonhams Pre-Explorer lots and the Antiquorum 2021 / 2022 examples (case 944,925) all confirm "Oyster Perpetual / Precision" without Explorer signature on the dominant 6150 configuration. Some specialist listings read the early "Swiss only" Precision dial as among the first Explorer-configuration dials.

	<span id="explorer-precision-transitional"></span>		<span id="explorer-precision-transitional"></span>
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	=== Honeycomb / Blackout (rare) ===		=== Honeycomb / Blackout (rare) ===

	Honeycomb dials surface on the 6150 but at much lower frequency than on the 6350. A ~~specialist dealer lists a "6150 Honeycomb 'Blackout' Radium Dial" example, and a~~ handful of dealer listings reference honeycomb 6150s, but no major-house auction lot ~~in documented examples~~ surfaced a honeycomb 6150 with photographic confirmation. The 6150 is overwhelmingly a glossy-gilt or matte-gilt smooth-finish reference. Honeycomb is the 6350 signature, common-but-not-majority on the 6098, and rare-to-marginal on the 6150.		Honeycomb dials surface on the 6150 but at much lower frequency than on the 6350. A handful of dealer listings reference honeycomb 6150s, including one specialist "Honeycomb Blackout Radium" listing, but no major-house auction lot has surfaced a honeycomb 6150 with photographic confirmation. The 6150 is overwhelmingly a glossy-gilt or matte-gilt smooth-finish reference. Honeycomb is the 6350 signature, common-but-not-majority on the 6098, and rare-to-marginal on the 6150.

	<span id="case-bezel-crystal-and-crown"></span>		<span id="case-bezel-crystal-and-crown"></span>
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	The clearer expedition-watch story for the 6150 is Kangchenjunga 1955, not Everest 1953. Phillips Geneva Watch Auction SIX (10 November 2017) lot 244 sold George Band's caseback-engraved 6150 (case 945,021, "KANGCHENJUNGA 1955 G.C BAND") for CHF 200,000. Phillips Perpetual handled Tony Streather's 6150 from the same 1955 expedition by private treaty in 2024. Both watches were drawn from existing Rolex case stock dating to 1953.		The clearer expedition-watch story for the 6150 is Kangchenjunga 1955, not Everest 1953. Phillips Geneva Watch Auction SIX (10 November 2017) lot 244 sold George Band's caseback-engraved 6150 (case 945,021, "KANGCHENJUNGA 1955 G.C BAND") for CHF 200,000. Phillips Perpetual handled Tony Streather's 6150 from the same 1955 expedition by private treaty in 2024. Both watches were drawn from existing Rolex case stock dating to 1953.

	~~Net for the article: drop or heavily qualify any "Hillary's actual Explorer" framing.~~ The 6150's expedition pedigree runs through the 1955 British Kangchenjunga team (Band, Streather), not Hillary or Tenzing on Everest.		The 6150's expedition pedigree runs through the 1955 British Kangchenjunga team (Band, Streather), not Hillary or Tenzing on Everest.

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← Older revision		Revision as of 13:38, 29 April 2026
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	== Production outline ==		== Production outline ==

	Production dates carry three competing readings across the literature. Fratello's "Pre-Icon Models" piece (2024) places the 6150 in 1952–1953 only, alongside but pre-dating the 6350. The case-number evidence from major-house lots tells a different story: documented examples cluster in the 944,000–945,000 band with a tight 1953 concentration. ~~Mostra~~-~~Store, Mark Littler, and 10pastten read~~ the run as 1953–1959 — a six-year line. The Field Manual gives 1952–1959.		Production dates carry three competing readings across the literature. Fratello's "Pre-Icon Models" piece (2024) places the 6150 in 1952–1953 only, alongside but pre-dating the 6350. The case-number evidence from major-house lots tells a different story: documented examples cluster in the 944,000–945,000 band with a tight 1953 concentration. Some collector-dealer reads the run as 1953–1959 — a six-year line. The Field Manual gives 1952–1959.

	Documented case-number anchors from the auction record: 931,134 (Sotheby's 2025 H.S.10 CD Royal Navy, c.1953); 944,811 (Bonhams H.S.10 CD, Feb 1953); 944,925 (Antiquorum, 1953); 944,995 (Antiquorum 2006 Mondani); 945,021 (Phillips 2017, George Band Kangchenjunga); 945,096 (Sotheby's 2022 / 2024). All sit in a tight 931K–945K window — a short, mostly-1953 run with later examples (per dealer narratives) trickling out into 1955–1956 as remaining cases were assembled. The 1955 Kangchenjunga gifts to Streather and Band were drawn from this same band, suggesting Rolex held existing case stock back rather than continuing case production for years. The "until 1959" claim is unsupported by the case-number evidence and likely a re-tread of the 6610 transition date applied to the 6150.		Documented case-number anchors from the auction record: 931,134 (Sotheby's 2025 H.S.10 CD Royal Navy, c.1953); 944,811 (Bonhams H.S.10 CD, Feb 1953); 944,925 (Antiquorum, 1953); 944,995 (Antiquorum 2006 Mondani); 945,021 (Phillips 2017, George Band Kangchenjunga); 945,096 (Sotheby's 2022 / 2024). All sit in a tight 931K–945K window — a short, mostly-1953 run with later examples (per dealer narratives) trickling out into 1955–1956 as remaining cases were assembled. The 1955 Kangchenjunga gifts to Streather and Band were drawn from this same band, suggesting Rolex held existing case stock back rather than continuing case production for years. The "until 1959" claim is unsupported by the case-number evidence and likely a re-tread of the 6610 transition date applied to the 6150.
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	== Movement notes ==		== Movement notes ==

	The 6150 runs caliber A296. Specifications converge across the auction-house catalogs and the ~~watchdoctor.biz~~ movement ~~registry~~ at full-rotor self-winding (not bumper), 29.5mm diameter (~13 lignes), 18 jewels, with the architecture used across Rolex catalog reference numbers 765, 775, and the Explorer 6098 / 6150 / 6350. The "bumper" association sometimes attached to A296 traces to the bubble-back caseback geometry rather than to the rotor system. The Rolex Forums A296 thread describes A296 as a "10.5-ligne version of a 635/645… uses a double spring hookup on the autowind and is shock resistant" — forum-level architecture detail, treat as inferred until corroborated against a service manual.		The 6150 runs caliber A296. Specifications converge across the auction-house catalogs and the movement registries at full-rotor self-winding (not bumper), 29.5mm diameter (~13 lignes), 18 jewels, with the architecture used across Rolex catalog reference numbers 765, 775, and the Explorer 6098 / 6150 / 6350. The "bumper" association sometimes attached to A296 traces to the bubble-back caseback geometry rather than to the rotor system. The Rolex Forums A296 thread describes A296 as a "10.5-ligne version of a 635/645… uses a double spring hookup on the autowind and is shock resistant" — forum-level architecture detail, treat as inferred until corroborated against a service manual.

	A260, the smaller sister caliber used on the early Submariner refs 6202 / 6204 / 6205, sits at 26.4mm (~11.5 lignes) and was developed in parallel — A260 for the thinner Submariner cases, A296 for the bubble-back Explorer line. Both are full-rotor self-winding 18-jewel calibers; the size difference is the principal distinction. Beat rate (vph) is not stated in the surveyed editorial corpus; likely 18,000 vph based on era and architecture, but no service-manual citation has surfaced.		A260, the smaller sister caliber used on the early Submariner refs 6202 / 6204 / 6205, sits at 26.4mm (~11.5 lignes) and was developed in parallel — A260 for the thinner Submariner cases, A296 for the bubble-back Explorer line. Both are full-rotor self-winding 18-jewel calibers; the size difference is the principal distinction. Beat rate (vph) is not stated in the surveyed editorial corpus; likely 18,000 vph based on era and architecture, but no service-manual citation has surfaced.
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	=== "Precision" dial (standard) ===		=== "Precision" dial (standard) ===

	The dominant 6150 dial. Glossy black ground with gilt printing, 3-6-9 chapter ring, "Oyster Perpetual" above the centre, and "Precision" beneath the centre. No Explorer marking. The Bonhams Pre-Explorer lots and the Antiquorum 2021 / 2022 examples (case 944,925) all confirm "Oyster Perpetual / Precision" without Explorer signature on the dominant 6150 configuration. ~~Hairspring's specialist~~ listing reads a "Swiss only" Precision dial as "amongst the very first Explorer-configuration dials."		The dominant 6150 dial. Glossy black ground with gilt printing, 3-6-9 chapter ring, "Oyster Perpetual" above the centre, and "Precision" beneath the centre. No Explorer marking. The Bonhams Pre-Explorer lots and the Antiquorum 2021 / 2022 examples (case 944,925) all confirm "Oyster Perpetual / Precision" without Explorer signature on the dominant 6150 configuration. listing reads a "Swiss only" Precision dial as "amongst the very first Explorer-configuration dials."

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	=== Honeycomb / Blackout (rare) ===		=== Honeycomb / Blackout (rare) ===

	Honeycomb dials surface on the 6150 but at much lower frequency than on the 6350. ~~Mauri DeAngelis~~ lists a "6150 Honeycomb 'Blackout' Radium Dial" example, and a handful of dealer listings reference honeycomb 6150s, but no major-house auction lot in the surveyed corpus surfaced a honeycomb 6150 with photographic confirmation. The 6150 is overwhelmingly a glossy-gilt or matte-gilt smooth-finish reference. Honeycomb is the 6350 signature, common-but-not-majority on the 6098, and rare-to-marginal on the 6150.		Honeycomb dials surface on the 6150 but at much lower frequency than on the 6350. A specialist dealer lists a "6150 Honeycomb 'Blackout' Radium Dial" example, and a handful of dealer listings reference honeycomb 6150s, but no major-house auction lot in the surveyed corpus surfaced a honeycomb 6150 with photographic confirmation. The 6150 is overwhelmingly a glossy-gilt or matte-gilt smooth-finish reference. Honeycomb is the 6350 signature, common-but-not-majority on the 6098, and rare-to-marginal on the 6150.

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	== Hillary and the 1953 Everest question ==		== Hillary and the 1953 Everest question ==

	The "6150 was Hillary's actual Everest watch" claim is contested and the evidence does not support it. Rolex's own 70th-anniversary post and Fratello's 2023 piece on the watch gifted to Hillary identify Hillary's Rolex as a chronometer-rated Oyster Perpetual (6098-class), not a 6150. The watch Rolex gifted to Hillary post-expedition was a chronometer-grade piece marked "Officially Certified Chronometer" — that wording does not appear on a Precision-rated 6150. Hillary himself reportedly carried a Smiths De Luxe A409 to the summit alongside a Rolex; the Smiths / Rolex / Everest debate is well-documented in ~~Everest Bands'~~ research and resolved in favor of the Smiths as the on-summit watch.		The "6150 was Hillary's actual Everest watch" claim is contested and the evidence does not support it. Rolex's own 70th-anniversary post and Fratello's 2023 piece on the watch gifted to Hillary identify Hillary's Rolex as a chronometer-rated Oyster Perpetual (6098-class), not a 6150. The watch Rolex gifted to Hillary post-expedition was a chronometer-grade piece marked "Officially Certified Chronometer" — that wording does not appear on a Precision-rated 6150. Hillary himself reportedly carried a Smiths De Luxe A409 to the summit alongside a Rolex; the Smiths / Rolex / Everest debate is well-documented in specialist research and resolved in favor of the Smiths as the on-summit watch.

	Tenzing Norgay is variously claimed in dealer-side editorial to have worn a 6098 prototype on the climb. Some Phillips and Sotheby's editorial pieces frame the Tenzing watch as "a prototype of this watch [6150]," but no surviving Tenzing watch has been authenticated as a 6150. Rolex did supply expedition watches to the 1953 Everest team for accuracy testing; these were chronometer-rated reference 6098s, returned to Rolex post-expedition for accuracy data.		Tenzing Norgay is variously claimed in dealer-side editorial to have worn a 6098 prototype on the climb. Some Phillips and Sotheby's editorial pieces frame the Tenzing watch as "a prototype of this watch [6150]," but no surviving Tenzing watch has been authenticated as a 6150. Rolex did supply expedition watches to the 1953 Everest team for accuracy testing; these were chronometer-rated reference 6098s, returned to Rolex post-expedition for accuracy data.