First Execution, Tachymeter Dial (T)
Carrera 12 (gold-plated) 2448 — First Execution, Tachymeter Dial (T)
1968–?
White dial with tachymeter scale.
Identifying details
- Tachymeter scale on dial
Tachymeter track printed on the dial.
Variants of 2448
Reference overview →| Variant | Production |
|---|---|
| First Execution, White Dial (S) | 1963–? |
| First Execution, Black Dial (N) | 1963–? |
| First Execution, Tachymeter Dial (T)Current | 1968–? |
| First Execution, Black Dial with Tachymeter | 1968–? |
Case & movement
- Reference
- 2448
- Production
- 1968–?
- Case material
- Gold plated
- Crystal
- Plastic
- Movement
- Manual winding
- Date
- No
- Caliber
- Valjoux 72
Dial, bezel & hands
- Dial colour
- White dial, white registers
Unknown attributes are left out rather than guessed.
Movement
Valjoux 72
13-ligne hand-wound chronograph with column wheel and horizontal clutch, descended from the 14-ligne Valjoux 22/23. Its 12-hour counter at six set the classic three-register layout. Made 1938–1974 and used by Rolex, Heuer and many others; Rolex fitted it to the pre-Daytona ref. 6234.