1.64 x .065 x 260 x 6 Non-Automatic
GR64031Additional Information
| AS Calibre Number | 577, 577.301, 577301 |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| ETA Calibre Number | 277.001 |
| Mainspring Height | 1.64 |
| Mainspring Thickness (Strength) | 0.065 |
| Mainspring Length | 260 |
| Mainspring Barrel Diameter | 6 |
| Mainspring Type | Non Auto |
£7.30
EACH
