AS 1203-770, Mainspring
Tax included.
- Manufacturer: YTIRE, Corgémont, Switzerland.
- Material: Blued, hardened steel.
- Fits cal: 1203, 1207, 1263, 1266, 1267, 1311, 1314
- H: = 1.75
- D: = 9,5
- F: = 0,115
- L: = 340
Data: AS 1203
- 15 jewels, manual wind, sub second.
- Size: 12''' 26.6 mm.
- H: = 3.80 mm.
- N: = 18.000 A/h.
- Power reserve: 40 h.
- Mainspring: 1.75 x 9.5 - 0.115 - 340 mm.