1.70 x .13 x 320 x 10.5 T- End
GR4957TAdditional Information
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Mainspring Height | 1.70 |
| Mainspring Thickness (Strength) | 0.13 |
| Mainspring Length | 320 |
| Mainspring Barrel Diameter | 10.5 |
| Mainspring Type | T End |
| illinois Calibre Number | 4758 |
£7.30
EACH
