Reference:4365: Difference between revisions

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The case is supplied by the same Aegler-related case-supply chain as the 4925. The Bubbleback-class envelope sits closer to the post-war flat Oyster than to the pre-war Bubbleback proper — the Cal 10½ Hunter doesn't need rotor clearance. Lugs are 19mm with drilled spring-bar holes. The bezel is fixed and steel and smooth. The crown is manual-brevet screw-down.
The case is supplied by the same Aegler-related case-supply chain as the 4925. The Bubbleback-class envelope sits closer to the post-war flat Oyster than to the pre-war Bubbleback proper — the Cal 10½ Hunter doesn't need rotor clearance. Lugs are 19mm with drilled spring-bar holes. The bezel is fixed and steel and smooth. The crown is manual-brevet screw-down.


A documented 4365/6022 composite case appears in late-1950s production. Bonhams 2023 Canadian Collection lot 17 catalogues a 4365/6022 Air-Lion dated c.1958 — the secondary reference 6022 is a service-case from a later run, indicating Rolex serviced and re-cased original 4365 movements into 6022-style cases as late as 1958. The 4365/6022 composite is a service-replacement variant rather than a continuous-production subline; flag any documented 4365/6022 example as service-era refit rather than original-delivery 1940s production.
A documented 4365/6022 composite case appears in late-1950s production. Bonhams 2023 Canadian Collection lot 17 catalogues a 4365/6022 Air-Lion dated c.1958 — the secondary reference 6022 is a service-case from a later run, indicating Rolex serviced and re-cased original 4365 movements into 6022-style cases as late as 1958. Documented 4365/6022 examples are service-era refits rather than original-delivery 1940s production.


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The retirement is consensus 1953, mirroring the 4925's catalog cutoff. The Cal 10½ Hunter movement family retires with the broader pre-1030 hand-wound Air-King line, and the 6552 (1953-1957, first automatic Air-King with Cal 1030) takes the line forward. The 4365/6022 composite-cased examples that surface dated 1958 (Bonhams 2023 lot 17) are service-replacement re-cased examples rather than late-stock continuation production — Rolex assembled or re-cased original 4365 movements into 6022-style cases up to several years after the 4365 itself retired from the catalog.
The retirement is consensus 1953, mirroring the 4925's catalog cutoff. The Cal 10½ Hunter movement family retires with the broader pre-1030 hand-wound Air-King line, and the 6552 (1953-1957, first automatic Air-King with Cal 1030) takes the line forward. The 4365/6022 composite-cased examples that surface dated 1958 (Bonhams 2023 lot 17) are service-replacement re-cased examples rather than late-stock continuation production — Rolex assembled or re-cased original 4365 movements into 6022-style cases up to several years after the 4365 itself retired from the catalog.


Total production output is not published. The 4365 is scarce at major-house auction — three documented lots in the auction record through 2025 (Bonhams 2023 Air-Lion, Bonhams 2023 Air-Tiger, Antiquorum 2001 18K pink gold Precision). Sotheby's, Phillips, and Christie's have no documented 4365 lots in the corpus. The 1945-era short production window plus the 4365's modest profile in its day plus the four-name dial-marketing complexity that obscures the catalog presence keep the auction record thin. The Goldammer side-by-side photograph carries more weight in the corpus than any single auction-house lot.
Total production output is not published. The 4365 is scarce at major-house auction — three documented lots in the auction record through 2025 (Bonhams 2023 Air-Lion, Bonhams 2023 Air-Tiger, Antiquorum 2001 18K pink gold Precision). Sotheby's, Phillips, and Christie's have no documented 4365 lots in the corpus. The 1945-era short production window, the 4365's modest profile in its day, and the four-name dial-marketing complexity that obscures the catalog presence keep the auction record thin. The Goldammer side-by-side photograph carries more weight in the corpus than any single auction-house lot.


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== Movement notes ==
== Movement notes ==


The 4365 runs the '''Cal 10½ Hunter''' family — same architectural base as the 4925 / 4499 sisters, with the sub-seconds layout instead of centre-seconds. The caliber receives different commercial designations across documented lots: 700-series base architecture (700 / 710 / 720 / similar), with running updates across the production window. Manual wind, sub-seconds at six, '''15 jewels''' in the early production, '''17 jewels''' as a running update later — same 15j → 17j progression documented on the 4925 / 4499 sisters and consistent with the broader Cal 10½ Hunter family generational refresh.
The 4365 runs the Cal 10½ Hunter family in its sub-seconds layout — small seconds register at six rather than the centre-seconds sweep of the 4925. The 700-series base architecture (700 / 710 / 720 / similar) and the 15j → 17j running update mirror the 4925's progression; see [[Reference:4925#movement-notes|the 4925 movement notes]] for the canonical caliber breakdown.


The Aegler-supplied caliber is the technical bridge between the pre-war Bubbleback shaped-caliber generation and the post-war Cal 1030 automatic that arrives on the 6552 in 1953. The Cal 10½ Hunter envelope sets the case profile — flat enough that the 4365 doesn't need the deep "Bubbleback" caseback dome required for the rotor-equipped 1030. The 4365's case profile reads closer to the post-war flat-case Oyster than to the pre-war Bubbleback proper.
The case profile reads closer to the post-war flat-case Oyster than to the pre-war Bubbleback proper; the Cal 10½ Hunter doesn't need rotor-clearance dome.


The 4365 is not COSC chronometer rated. The dial reads PRECISION across documented examples; "Super Precision" attribution on a 4365 dial is service-replacement (likely a 5500-era Cal 1530 dial swap applied during service) and is not original.
The 4365 is not COSC chronometer rated. The dial reads PRECISION across documented examples; "Super Precision" attribution on a 4365 dial is service-replacement (likely a 5500-era Cal 1530 dial swap applied during service) and is not original.
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== Dial map ==
== Dial map ==


The 4365 carries the broadest single-reference dial-name distribution in the Air-King family — four marketing names on shared cases. Five documented configurations across the major-house and specialist-dealer corpus:
The 4365 carries the broadest single-reference dial-name distribution in the Air-King family — four marketing names on shared cases. Five documented configurations across the auction record and specialist-dealer market:


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=== Four-name commemoration on shared cases ===
=== Four-name commemoration on shared cases ===


The 4365's defining branch — the Air-King / Air-Lion / Air-Tiger / Air-Giant dial-text distribution on a single case-and-movement combination. Goldammer's side-by-side photograph is the documentary anchor. Rolex commissioned the four names in 1945 as a Battle of Britain commemoration aimed at RAF pilots; market reception (or dealer ordering preference) selected Air-King over the three sister names by the early 1950s. The 4365 carried the broadest sister-name distribution across its production window.
The 4365's defining branch — the Air-King / Air-Lion / Air-Tiger / Air-Giant dial-text distribution on a single case-and-movement combination. Goldammer's side-by-side photograph is the documentary anchor. The four-name 1945 commemoration is covered at [[Reference:4925#battle-of-britain-narrative|the 4925's Battle of Britain section]]; the 4365 carried the broadest sister-name distribution within that program.


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=== 4365/6022 composite-cased late examples ===
=== 4365/6022 composite-cased late examples ===


Bonhams 2023 Canadian Collection lot 17 catalogues a 4365 Air-Lion movement in a 6022 service-replacement case dated c.1958. The convention indicates Rolex serviced and re-cased original 4365 movements into 6022-style cases as late as 1958, several years after the 4365 itself retired from the catalog. Treat 4365/6022 composite-cased examples as service-replacement variants rather than original-delivery production. The 6022 secondary reference is a later-period service case, not a continuous-production sub-line.
Bonhams 2023 Canadian Collection lot 17 catalogues a 4365 Air-Lion movement in a 6022 service-replacement case dated c.1958. The convention indicates Rolex serviced and re-cased original 4365 movements into 6022-style cases as late as 1958, several years after the 4365 itself retired from the catalog. 4365/6022 composite-cased examples are service-replacement variants rather than original-delivery production. The 6022 secondary reference is a later-period service case, not a continuous-production sub-line.


The Tudor Air-Tiger ref 7957 cross-brand continuation (Foundwell c.1959, Analog:Shift c.1964) carries the Air-Tiger name forward on the Tudor side after Rolex retires it. The cross-brand Tudor 7957 is not a 4365 sub-variant but is the genealogical successor to the 4365 Air-Tiger sister-name dial. A documented 4647 Air-Lion (~1947, 31×39mm Hunter Precision) and the 4444 Air-Lion / Air-Giant / Air-King mid-size with solid-gold bezel/crown are the non-4365 references that carried Air-Lion / Air-Giant variants in the 1945-launch generation.
The Tudor Air-Tiger ref 7957 cross-brand continuation (Foundwell c.1959, Analog:Shift c.1964) carries the Air-Tiger name forward on the Tudor side after Rolex retires it. The cross-brand Tudor 7957 is not a 4365 sub-variant but is the genealogical successor to the 4365 Air-Tiger sister-name dial. A documented 4647 Air-Lion (~1947, 31×39mm Hunter Precision) and the 4444 Air-Lion / Air-Giant / Air-King mid-size with solid-gold bezel/crown are the non-4365 references that carried Air-Lion / Air-Giant variants in the 1945-launch generation.
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== Authentication ==
== Authentication ==


The 4365 is 80 years old. Most surviving examples have been serviced multiple times across that span, and the 4365/6022 composite case convention documented at Bonhams 2023 demonstrates that Rolex itself re-cased original movements into later service cases as late as 1958. Treat all 4365 examples as potentially service-refit and read the dial / movement / case combination rather than relying on any single anchor.
The 4365 is 80 years old. Most surviving examples have been serviced multiple times across that span, and the 4365/6022 composite case convention documented at Bonhams 2023 demonstrates that Rolex itself re-cased original movements into later service cases as late as 1958. Most 4365 examples are potentially service-refit; read the dial / movement / case combination rather than relying on any single anchor.


The dial-text question is the cleanest single anchor for variant identification. AIR-KING / AIR-LION / AIR-TIGER / AIR-GIANT are all documented period-correct 4365 dial configurations; the four sister names are not interchangeable on a service-replacement basis (a service-replacement Air-Tiger dial applied to a 4365/6022 service case would be plausible but dramatic). Provenance documentation (period photographs, the dealer's-ledger entry where available, the geographic distribution channel) is essential at the four-name dial-text level. Marcus Siems' side-by-side photograph is the standard reference for the four configurations.
The dial-text question is the cleanest single anchor for variant identification. AIR-KING / AIR-LION / AIR-TIGER / AIR-GIANT are all documented period-correct 4365 dial configurations; the four sister names are not interchangeable on a service-replacement basis (a service-replacement Air-Tiger dial applied to a 4365/6022 service case would be plausible but dramatic). Provenance documentation (period photographs, the dealer's-ledger entry where available, the geographic distribution channel) is essential at the four-name dial-text level. Marcus Siems' side-by-side photograph is the standard reference for the four configurations.


The case-stamp authentication: a 4365 caseback stamped only "4365" inside is original 1945-era production; a 4365 caseback stamped "4365/6022" is the late-1950s composite case (period-correct service replacement, not original delivery). The 4365/6022 distinction matters for dating: a c.1946 4365/6022 case is impossible (the 6022 case-supply post-dates 4365 production); a c.1958 4365/6022 example is consistent with documented service-replacement convention.
Caseback stamping is the cleanest dating anchor: a caseback stamped only "4365" inside is original 1945-era production; a caseback stamped "4365/6022" is the late-1950s composite case (period-correct service replacement, not original delivery). A c.1946 4365/6022 case is impossible because the 6022 case-supply post-dates 4365 production; a c.1958 4365/6022 example is consistent with the documented service-replacement convention.


The movement should be Cal 10½ Hunter sub-seconds. A 4365 with a Cal 1030 (the 6552 successor's caliber), Cal 1530, or Cal 1520 movement is service-replacement and is not original. The Cal 10½ Hunter's sub-seconds layout requires the small seconds register at six on the dial; a 4365 with a centre-seconds dial layout suggests a service-era dial-or-movement swap. The case suffix on solid-gold variants should match the metal: 18K pink gold examples carry hallmark stamps consistent with the solid-gold construction; absence of hallmark on what should be solid gold is a flag.
The movement should be Cal 10½ Hunter sub-seconds. A 4365 with a Cal 1030 (the 6552 successor's caliber), Cal 1530, or Cal 1520 movement is service-replacement and is not original. The Cal 10½ Hunter's sub-seconds layout requires the small seconds register at six on the dial; a 4365 with a centre-seconds dial layout suggests a service-era dial-or-movement swap. The case suffix on solid-gold variants should match the metal: 18K pink gold examples carry hallmark stamps consistent with the solid-gold construction; absence of hallmark on what should be solid gold is a flag.