IWC 8531 (1.20 x .10 x 340 x 9.5 Automatic)
GR2922XAdditional Information
| Alpina Calibre Number | 571 |
| AS Calibre Number | 1656, 1664, 1673, 1674, 1675, 1678, 1739, 1740 |
| Elgin Calibre Number | 663, 664, 843 |
| Gruen Calibre Number | 665, 670 |
| Helvetia Calibre Number | 839, 842 |
| IWC Calibre Number | 8531, C8531 |
| Mainspring Barrel Diameter | 9.5 |
| Mainspring Height | 1.20 |
| Mainspring Length | 340 |
| Mainspring Thickness (Strength) | .10, 0.10 |
| Mainspring Type | Auto |
| Omega Calibre Number | 470, 471, 490, 491, 500, 501, 502, 503, 504, 505 |
| Swiss Part Description | 1208, 20.100, 20.102, 20100, 20102, 770, 771, 7770, 7771, 7772, MainSpring, Mainsprings |
| Tissot Calibre Number | 26.5R21, 890, 891 |
£6.50
EACH
Quantity Discounts
| £6.50 when you buy 1 |
| £6.17 when you buy 2 or more |
