Longines 12.92
- Serial no: 4 551 633 (aprox: 1927).
- Cut bimetallic balance, flat hairspring.
Data:
- 15 jewels, manual wind, sub second.
- Size: 12''' 27,0 mm.
- H: = 4.20 mm.
- N: = 18.000 A/h.
- Power reserve: 40 h.
- Mainspring: 1,45 x 10,5 - 0,11 - 380, T-Brace
Versions:
- 12.91: white movement, adj. 3 pos.
- 12.92: gilt movement.