2.80 x .20 x 540 x 16.5 Non-Automatic
GR6999Additional Information
| Mainspring Height | 2.80 |
| Mainspring Thickness (Strength) | .20, 0.20 |
| Mainspring Length | 540 |
| Mainspring Barrel Diameter | 16.5 |
| Mainspring Type | Non Auto |
| Moeris Calibre Number | 19A |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Zenith Calibre Number | 193, 68, 68.21, 69 |
