Calibre catalogue / Hand-wound / 50A4A

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50A4A 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
50A4A
5 Series
- —Small seconds
| Specification | |
|---|---|
| Size | 30 mm (1.181 in) |
| Height | 5.3 mm (0.209 in) |
| Jewels | 40 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 42 h |
| Finish colour | White |
Check dimensions against the fitting drawing before tooling a case.



