Brown Nipple Dial · Brown Mark 1
GMT-Master Concorde 1675/8 — Brown Nipple Dial · Brown Mark 1
Undated
The only brown dial with a hyphenated “OYSTER–PERPETUAL”; the “I” of Swiss printed separately beside the 30-minute index. Smooth, glossy surface. Found only on the 1960s 1675/8, through the crown-guard, hand (alpha to Concorde) and 24-hour-hand changes. Three subtypes by the six o’clock print: no T (88x,xxx–99x,xxx), low “T Swiss T” (97x,xxx–16x,xxxx), high “T Swiss T” (160x,xxx–18x,xxxx).
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Identifying details
- 24-hour hand
Fourth, 24-hour hand read against a 24-hour bezel for a second time zone.
- Date
Date display.
- Cyclops
Magnifying lens over the date.
- Nipple dial
Applied gold hour markers with luminous centres.
Variants of 1675/8
Reference overview →| Variant | Production |
|---|---|
| Concorde, No Crown Guards | ?–1965 |
| Concorde, Crown Guards | 1966–1969 |
| Brown Nipple Dial | c. 1960–1979 |
| Brown Nipple Dial · Brown Mark 1Current | Undated |
Case & movement
- Reference
- 1675/8
- Production
- Undated
- Case serials
- c. 880,000–1.9M
- Case material
- 18k yellow gold
- Crystal
- Acrylic
- Movement
- Automatic
- Date
- Yes
Dial, bezel & hands
- Dial colour
- Brown
- Bezel colour