Calibre catalogue / Hand-wound / 631WB

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631WB fitting drawing (PDF)
Dimensions, stem height and hand fitting. Keyed to the base calibre, so sibling references share this drawing. Supplied for casing and fitting purposes only.
Hand-wound
631WB Hand-wound mechanical movement
6 Series
631WB has the following listed functions: Centre seconds. Its documented specifications are 26 mm diameter; 5.35 mm height; 28 jewels; 28,800 vph (4 Hz); 38 h power reserve; finish colour: Gilt.
- —Centre seconds
| Specification | |
|---|---|
| Size | 26 mm (1.024 in) |
| Height | 5.35 mm (0.211 in) |
| Jewels | 28 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 38 h |
| Finish colour | Gilt |
Check dimensions against the fitting drawing before tooling a case.
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How to order
Prices on request. Samples available. Made to order, approximately 8–10 weeks. Finishing by Memorigin optional.
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