1.45 x .085 x 380 x 9.5 Non-Automatic
GR3937Additional Information
| AS Calibre Number | 962, 978 |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Mainspring Height | 1.45 |
| Mainspring Thickness (Strength) | .085, 0.085 |
| Mainspring Length | 380 |
| Mainspring Barrel Diameter | 9.5 |
| Mainspring Type | Non Auto |
| Helbros Calibre Number | 57 |
£7.30
EACH
