1.10 x .065 x 220 x 6 Non-Automatic
GR2557Additional Information
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Mainspring Height | 1.10 |
| Mainspring Thickness (Strength) | 0.065 |
| Mainspring Length | 220 |
| Mainspring Barrel Diameter | 6 |
| Mainspring Type | Non Auto |
| Durowe Calibre Number | 260 |
| Universal Calibre Number | 500, 501, 505, 506 |
