2.40 x .19 x 540 x 16.5 T- End
GR6563TAdditional Information
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Mainspring Height | 2.40 |
| Mainspring Thickness (Strength) | .19, 0.19 |
| Mainspring Length | 540 |
| Mainspring Barrel Diameter | 16.5 |
| Mainspring Type | T End |
| Longines Calibre Number | 19.70N, 19.70N1, 19.71N, 19.71N2DC, 19.71SF |
£7.30
EACH
