Reference:1016: Difference between revisions

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Serial range: approximately 516xxx-915xxx, with rare examples as late as 13xxxxx. Chapter ring present. The coronet is ~~described as “stringy”~~ with a wide base extending outward ~~— a~~ distinctive ~~shape that helps with~~ identification. The defining feature is an underline below the SCOC text, ~~which indicates~~ tritium luminous material. This is one of the radium-to-tritium transition markers ~~— the underline signals~~ that the factory has switched to tritium lume on this dial.

Serial range: approximately 516xxx-915xxx, with rare examples as late as 13xxxxx. Chapter ring present. The coronet is “stringy,” with a wide base extending outward; the shape is distinctive enough to drive identification. The defining feature is an underline below the SCOC text, indicating tritium luminous material. This is one of the radium-to-tritium transition markers, signalling that the factory has switched to tritium lume on this dial.

Within the 600-999xxx range, Type 2 dials ~~can~~ appear with exclamation points, underlines, or both. The exclamation-plus-underline combination is unique to the Explorer — contemporary GMT-Master and Submariner dials from the same era do not combine both markers. ~~Why the Explorer is different~~ is not documented~~. It~~ may reflect a different dial supplier or a different internal standard for the Explorer line. Bottom text reads “Swiss” (radium era). A transitional example at approximately 1.3M serial with tritium “T<25” text has been documented but requires careful provenance verification.

Within the 600-999xxx range, Type 2 dials appear with exclamation points, underlines, or both. The exclamation-plus-underline combination is unique to the Explorer; contemporary GMT-Master and Submariner dials from the same era do not combine both markers. The reason is not documented and may reflect a different dial supplier or a different internal standard for the Explorer line. Bottom text reads “Swiss” (radium era). A transitional example at approximately 1.3M serial with tritium “T<25” text has been documented but requires careful provenance verification.

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Serial range: approximately 516xxx-105xxxx. Chapter ring present. The coronet is ~~described as~~ “tall and cartoonish” with ~~“large~~ pearls at the ~~top” —~~ a more exaggerated shape than Types 1 or 2. The defining feature is an exclamation point (a small dot) below the 6 o’clock position, ~~which is~~ another radium-to-tritium transition indicator. Exclamation points appear in the 6-9xxxxx range. Bottom text reads “Swiss” (radium era). Exclamation points also appear on Submariner and GMT-Master dials from this era, so ~~this~~ marker is not Explorer-specific ~~— but~~ its appearance on the 1016 follows the same timeline.

Serial range: approximately 516xxx-105xxxx. Chapter ring present. The coronet is “tall and cartoonish” with large pearls at the top, a more exaggerated shape than Types 1 or 2. The defining feature is an exclamation point (a small dot) below the 6 o’clock position, another radium-to-tritium transition indicator. Exclamation points appear in the 6-9xxxxx range. Bottom text reads “Swiss” (radium era). Exclamation points also appear on Submariner and GMT-Master dials from this era, so the marker is not Explorer-specific, though its appearance on the 1016 follows the same timeline.

Types 2 and 3 overlap in serial ranges. The relationship between the underline (Type 2) and the exclamation point (Type 3) as lume transition markers is not cleanly sequential ~~— both~~ appear across the same broad serial range, and the exclamation-plus-underline combination on some Type 2 dials makes the story messier. Treat these as related but not strictly ordered transition markers.

Types 2 and 3 overlap in serial ranges. The relationship between the underline (Type 2) and the exclamation point (Type 3) as lume transition markers is not cleanly sequential. Both appear across the same broad serial range, and the exclamation-plus-underline combination on some Type 2 dials makes the story messier. Treat these as related but not strictly ordered transition markers.

@@ Line 352: / Line 352: @@
 [[File:Ref 1016 gilt type-2.webp|thumb|right|220px|alt=Gilt Type 2 — stringy crown|Gilt Type 2 — stringy crown]]
-Serial range: approximately 516xxx-915xxx, with rare examples as late as 13xxxxx. Chapter ring present. The coronet is described as “stringy” with a wide base extending outward — a distinctive shape that helps with identification. The defining feature is an underline below the SCOC text, which indicates tritium luminous material. This is one of the radium-to-tritium transition markers — the underline signals that the factory has switched to tritium lume on this dial.
+Serial range: approximately 516xxx-915xxx, with rare examples as late as 13xxxxx. Chapter ring present. The coronet is “stringy,” with a wide base extending outward; the shape is distinctive enough to drive identification. The defining feature is an underline below the SCOC text, indicating tritium luminous material. This is one of the radium-to-tritium transition markers, signalling that the factory has switched to tritium lume on this dial.
-Within the 600-999xxx range, Type 2 dials can appear with exclamation points, underlines, or both. The exclamation-plus-underline combination is unique to the Explorer — contemporary GMT-Master and Submariner dials from the same era do not combine both markers. Why the Explorer is different is not documented. It may reflect a different dial supplier or a different internal standard for the Explorer line. Bottom text reads “Swiss” (radium era). A transitional example at approximately 1.3M serial with tritium “T&lt;25” text has been documented but requires careful provenance verification.
+Within the 600-999xxx range, Type 2 dials appear with exclamation points, underlines, or both. The exclamation-plus-underline combination is unique to the Explorer; contemporary GMT-Master and Submariner dials from the same era do not combine both markers. The reason is not documented and may reflect a different dial supplier or a different internal standard for the Explorer line. Bottom text reads “Swiss” (radium era). A transitional example at approximately 1.3M serial with tritium “T&lt;25” text has been documented but requires careful provenance verification.
 <span id="type-3-the-exclamation-point-dial"></span>
@@ Line 360: / Line 360: @@
 [[File:Ref 1016 gilt type-3.webp|thumb|right|220px|alt=Gilt Type 3 — tall cartoonish crown|Gilt Type 3 — tall cartoonish crown]]
-Serial range: approximately 516xxx-105xxxx. Chapter ring present. The coronet is described as “tall and cartoonish” with “large pearls at the top” — a more exaggerated shape than Types 1 or 2. The defining feature is an exclamation point (a small dot) below the 6 o’clock position, which is another radium-to-tritium transition indicator. Exclamation points appear in the 6-9xxxxx range. Bottom text reads “Swiss” (radium era). Exclamation points also appear on Submariner and GMT-Master dials from this era, so this marker is not Explorer-specific — but its appearance on the 1016 follows the same timeline.
+Serial range: approximately 516xxx-105xxxx. Chapter ring present. The coronet is “tall and cartoonish” with large pearls at the top, a more exaggerated shape than Types 1 or 2. The defining feature is an exclamation point (a small dot) below the 6 o’clock position, another radium-to-tritium transition indicator. Exclamation points appear in the 6-9xxxxx range. Bottom text reads “Swiss” (radium era). Exclamation points also appear on Submariner and GMT-Master dials from this era, so the marker is not Explorer-specific, though its appearance on the 1016 follows the same timeline.
-Types 2 and 3 overlap in serial ranges. The relationship between the underline (Type 2) and the exclamation point (Type 3) as lume transition markers is not cleanly sequential — both appear across the same broad serial range, and the exclamation-plus-underline combination on some Type 2 dials makes the story messier. Treat these as related but not strictly ordered transition markers.
+Types 2 and 3 overlap in serial ranges. The relationship between the underline (Type 2) and the exclamation point (Type 3) as lume transition markers is not cleanly sequential. Both appear across the same broad serial range, and the exclamation-plus-underline combination on some Type 2 dials makes the story messier. Treat these as related but not strictly ordered transition markers.
 <span id="type-4-the-first-open-chapter-dial"></span>