Detail : 0.9mm is for automatic watch
1.2mm is for manual winding wacth
| Material | solid steel (7.0mm) |
| Fit for | Montblanc TimeWalker watch such as:U0112604；09668；9670；0111197；U0101550；U0107338；U0101548；U0106507；U0105805；U0112604 |
| Estimated Working Time | 45 Business Days |
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