1.20 x .105 x 340 x 10 Non-Automatic
GR2937Additional Information
| AS Calibre Number | 1702, 1703, 1813 |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| ETA Calibre Number | 1581 |
| Mainspring Height | 1.20 |
| Mainspring Thickness (Strength) | .105, 0.105 |
| Mainspring Length | 340 |
| Mainspring Barrel Diameter | 10 |
| Mainspring Type | Non Auto |
| Omega Calibre Number | 25PC |
| Wittnauer Calibre Number | 11AN, 11SN |
£13.90
EACH
