1.60 x .16 x 540 x 15 Non-Automatic
GR4640Additional 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) | 0.16 |
| Mainspring Length | 540 |
| Mainspring Barrel Diameter | 15 |
| Mainspring Type | Non Auto |
| Amida Calibre Number | 151 |
| Lapanous Calibre Number | 13.22.20, 133, 22 |
| Oris Calibre Number | 13.91, 92, 93 |
£7.30
EACH
