1.30 x .115 x 440 x 12 Non-Automatic
GR3301Additional Information
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| ETA Calibre Number | 7770 |
| Mainspring Height | 1.30 |
| Mainspring Thickness (Strength) | .115, 0.115 |
| Mainspring Length | 440 |
| Mainspring Barrel Diameter | 12 |
| Mainspring Type | Non Auto |
| Roamer Calibre Number | 280 |
| Valjoux Calibre Number | 7770 |
£16.75
EACH
