1.60 x .135 x 340 x 11 Non-Automatic
GR4577Additional 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) | 0.135 |
| Mainspring Length | 340 |
| Mainspring Barrel Diameter | 11 |
| Mainspring Type | Non Auto |
| Lapanous Calibre Number | 272 |
| Lemania Calibre Number | 13CH, 13CH2P |
| Tissot Calibre Number | 28.9 |
£7.30
EACH
