Reference:6536-1: Difference between revisions

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The 6536/1 is the small-crown branch of the last no-crown-guard Submariner generation. It runs concurrently with the parent 6536 inside the 1955-1959 production window, and feeds directly into the [[Reference:5508|5508]], which carried the small-crown case forward into the newer caliber 1530 from 1958. On the big-crown side, the contemporary [[Reference:6538|6538]] runs the same caliber 1030 in the 200m / 8mm-Brevet configuration. The crown-guard transition arrives with the 5512 in late 1959, ending the unguarded small-crown generation entirely.

Wider family context sits on the parent [[Reference:6536|6536]] page: the 6205 lineage that precedes this generation, the 6536/8 transitional sub-variant with crossed-out "6538" caseback engravings, the bezel and dial evolution timeline within 1957, and ~~the full~~ production~~-volume framing~~.

Wider family context sits on the parent [[Reference:6536|6536]] page: the 6205 lineage that precedes this generation, the 6536/8 transitional sub-variant with crossed-out "6538" caseback engravings, the bezel and dial evolution timeline within 1957, and production figures.

==The /1 suffix==

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The case is the slim small-crown 37mm Oyster of the late-1950s no-guard generation, with a 6mm Brevet crown — distinct from the contemporary [[Reference:6538|6538]]'s 8mm "big" Brevet crown. Acrylic crystal with the domed profile of the period.

~~Bezel evolution within 1957 alone is~~ the ~~single most useful dating tool on~~ a 6536/1. The earliest 1957 examples carry a silver triangle at twelve with no minute hash marks across the first fifteen minutes. Mid-1957 production keeps the no-hash format and switches to a red triangle at twelve. Late 1959 production carries the red triangle alongside individual minute hash marks across the first fifteen minutes — the closest ancestor to the bezel that defines the 5512.

Changes to the bezel insert help place a 6536/1 within the production run. The earliest 1957 examples carry a silver triangle at twelve with no minute hash marks across the first fifteen minutes. Mid-1957 production keeps the no-hash format and switches to a red triangle at twelve. Late 1959 production carries the red triangle alongside individual minute hash marks across the first fifteen minutes — the closest ancestor to the bezel that defines the 5512.

The crown is the original single-coronet "Brevet" 6mm with double-lock; a three-dot crown on a 6536/1 is a service replacement. Quarterly inside-caseback stamps — a Roman-numeral quarter followed by a two-digit year — date the case head, and the format holds across documented examples: IV.55, I.56, II.56, I.57, II.57, III.57.

@@ Line 73: / Line 73: @@
 The 6536/1 is the small-crown branch of the last no-crown-guard Submariner generation. It runs concurrently with the parent 6536 inside the 1955-1959 production window, and feeds directly into the [[Reference:5508|5508]], which carried the small-crown case forward into the newer caliber 1530 from 1958. On the big-crown side, the contemporary [[Reference:6538|6538]] runs the same caliber 1030 in the 200m / 8mm-Brevet configuration. The crown-guard transition arrives with the 5512 in late 1959, ending the unguarded small-crown generation entirely.
-Wider family context sits on the parent [[Reference:6536|6536]] page: the 6205 lineage that precedes this generation, the 6536/8 transitional sub-variant with crossed-out "6538" caseback engravings, the bezel and dial evolution timeline within 1957, and the full production-volume framing.
+Wider family context sits on the parent [[Reference:6536|6536]] page: the 6205 lineage that precedes this generation, the 6536/8 transitional sub-variant with crossed-out "6538" caseback engravings, the bezel and dial evolution timeline within 1957, and production figures.
 ==The /1 suffix==
@@ Line 107: / Line 107: @@
 The case is the slim small-crown 37mm Oyster of the late-1950s no-guard generation, with a 6mm Brevet crown — distinct from the contemporary [[Reference:6538|6538]]'s 8mm "big" Brevet crown. Acrylic crystal with the domed profile of the period.
-Bezel evolution within 1957 alone is the single most useful dating tool on a 6536/1. The earliest 1957 examples carry a silver triangle at twelve with no minute hash marks across the first fifteen minutes. Mid-1957 production keeps the no-hash format and switches to a red triangle at twelve. Late 1959 production carries the red triangle alongside individual minute hash marks across the first fifteen minutes — the closest ancestor to the bezel that defines the 5512.
+Changes to the bezel insert help place a 6536/1 within the production run. The earliest 1957 examples carry a silver triangle at twelve with no minute hash marks across the first fifteen minutes. Mid-1957 production keeps the no-hash format and switches to a red triangle at twelve. Late 1959 production carries the red triangle alongside individual minute hash marks across the first fifteen minutes — the closest ancestor to the bezel that defines the 5512.
 The crown is the original single-coronet "Brevet" 6mm with double-lock; a three-dot crown on a 6536/1 is a service replacement. Quarterly inside-caseback stamps — a Roman-numeral quarter followed by a two-digit year — date the case head, and the format holds across documented examples: IV.55, I.56, II.56, I.57, II.57, III.57.