1.45 x .10 x 380 x 10 Automatic
GR3957XAdditional Information
| AS Calibre Number | 1712, 1713, 1816, 1847, 1849 |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Mainspring Height | 1.45 |
| Mainspring Thickness (Strength) | .10, 0.10 |
| Mainspring Length | 380 |
| Mainspring Barrel Diameter | 10 |
| Mainspring Type | Auto |
£7.30
EACH
