First Execution, Tachymeter Dial (T)
Carrera 12 (18k gold) 2456 — First Execution, Tachymeter Dial (T)
1964–?
White dial with a red 50–200 tachymeter track and thin markers.
Identifying details
- Tachymeter scale on dial
Tachymeter track printed on the dial.
Variants of 2456
Reference overview →| Variant | Production |
|---|---|
| First Execution, White Dial (S) | 1964–? |
| First Execution, Tachymeter Dial (T)Current | 1964–? |
| Second Execution, White Dial (S) | Undated |
| Second Execution, Tachymeter Dial (T) | Undated |
Case & movement
- Reference
- 2456
- Production
- 1964–?
- Case material
- 18k yellow gold
- 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.