1.60 x .14 x 640 x 15.5 Non-Automatic
GR4598Additional Information
| AS Calibre Number | 1389 |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| ETA Calibre Number | 17, 25 |
| Mainspring Height | 1.60 |
| Mainspring Thickness (Strength) | 0.14 |
| Mainspring Length | 640 |
| Mainspring Barrel Diameter | 15.5 |
| Mainspring Type | Non Auto |
| EB Calibre Number | 1140, 1229, 1316, 1325, 1327, 1328 |
| Ebosa Calibre Number | 1316 |
| Valjoux Calibre Number | 17, 25 |
£7.30
EACH
