Second Execution Case, Tachymeter Scale on Dial (Special Order)
Autavia 2446 — Second Execution Case, Tachymeter Scale on Dial (Special Order)
Undated
Special-order dial with a 50–200 units-per-hour tachymeter printed on the dial; the hands are shorter than standard.
Identifying details
- Tachymeter scale on dial
Tachymeter track printed on the dial.
Variants of 2446
Reference overview →| Variant | Production |
|---|---|
| First Execution Case and Dial (Big Subs) | 1962–? |
| First Execution Case and Dial (Big Subs) · First Execution Hands (Full Lume) | 1962–? |
| First Execution Case and Dial (Big Subs) · Second Execution Hands (Steel-Edged) | 1963–? |
| First Execution Case, Second Execution Dial | 1965–? |
Case & movement
- Reference
- 2446
- Production
- Undated
- Case serials
- Case material
- Stainless steel
- Crystal
- Plastic
- Movement
- Manual winding
- Date
- No
- Caliber
- Valjoux 72
Dial, bezel & hands
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.