1.60 x .21 x 480 x 17 Non-Automatic
GR4708Additional Information
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Mainspring Height | 1.60 |
| Mainspring Thickness (Strength) | 0.21 |
| Mainspring Length | 480 |
| Mainspring Barrel Diameter | 17 |
| Mainspring Type | Non Auto |
| Eterna Calibre Number | 321, 325 |
| Helvetia Calibre Number | 31, 31A |
| Junghans Calibre Number | 48, 49 |
£7.30
EACH
