Underline · Underline, Swiss Only
GMT-Master 1675 — Underline · Underline, Swiss Only
Undated
Open-chapter underline dial signed only “Swiss” (the non-chapter-ring “Type A”); deep black, often with spots or bubbles. Long, crowded letters in “Oyster Perpetual”; no hyphen. Only in pointed-crown-guard cases; never with an exclamation point.
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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.
- Open chapter ring
Minute hashes not joined by an outer ring.
- Underline
Printed underline in the dial text; understood to mark low-radiation tritium lume, c. 1962–64.
Variants of 1675
Reference overview →| Variant | Production |
|---|---|
| Gilt Dial | 1959–c. 1967 |
| Gilt Dial · OCC Dial | 1959–1960 |
| Gilt Dial · Pointed Crown Guards, Chapter Ring | 1960–1962 |
| Gilt Dial · Chapter Ring, Exclamation Point | 1962–1963 |
Case & movement
- Reference
- 1675
- Production
- Undated
- Case serials
- c. 875,000–1.2M
- Case material
- Stainless steel
- Case diameter
- 40 mm
- Crown guards
- Pointed
- Water resistance
- 50 m
- Crystal
- Acrylic
More specifications (2)
- Movement
- Automatic