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Home > Watch Parts > Mov't Parts > Mainsprings
Movement Parts—
Mainsprings
ETA Mainsprings
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Omega Mainsprings
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Other Brand
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Swiss Mainsprings for Rolex
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Ligne Conversion Guide |
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| Lignes | mm |
| 3-3/4 | 8.46 |
| 4 | 9.02 |
| 4-3/4 | 10.72 |
| 4-7/8 | 11.01 |
| 5-1/2 | 12.41 |
| 6 | 13.54 |
| 6-3/4 | 15.23 |
| 7 | 15.79 |
| 7-1/4 | 16.35 |
| 7-3/4 | 17.48 |
| 8 | 18.05 |
| 8-1/4 | 18.61 |
| 8-3/4 | 19.74 |
| 9.00 | 20.3 |
| 9-3/4 | 21.99 |
| 10 | 22.56 |
| 10-1/2 | 23.69 |
| 11-1/2 | 25.94 |
| 12 | 27.07 |
| 12-1/2 | 28.20 |
| 12-3/4 | 28.76 |
| 13 | 29.33 |
| 13-1/4 | 29.89 |
| 13-1/2 | 30.46 |
| 13-3/4 | 31.02 |
| 14 | 31.58 |
| 14-3/4 | 33.72 |
| 15 | 33.84 |