Mk 1 Bezel, 300 Units with 275
Cosmograph Daytona 6239 — Mk 1 Bezel, 300 Units with 275
c. 1963–?
First-series steel bezel graduated to 300 units per hour with small hash marks and a 275 numeral that later bezels drop. Many were replaced in service, so originals are scarce.
About 14,000 made, a few hundred of them in gold, per auction and collector estimates.
No verified image of this watch yet
Identifying details
- Pump pushers
Plain push-piece chronograph pushers, not screwed down.
- Tachymeter bezel
Tachymeter scale engraved on the rather than the dial.
Variants of 6239
Reference overview →| Variant | Production |
|---|---|
| First Series, Double Swiss | 1963–c. 1964 |
| First Series, Double Swiss · Underline Double Swiss | 1963 |
| First Series, Double Swiss · Double Swiss, No Underline | 1963 |
| First Series, Double Swiss · Double T Swiss T | 1963–1964 |
Case & movement
- Reference
- 6239
- Production
- c. 1963–?
- Case material
- Stainless steel
- Case diameter
- 36.5 mm
- Water resistance
- 50 m
- Crystal
- Acrylic
- Movement
- Manual winding
- Date
- No