Calibre catalogue / Hand-wound / 27A0B-3H
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27A0B-3H 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
27A0B-3H
2 Series
- —Skeletonised and engraved
- —Date
- —Centre seconds
| Specification | |
|---|---|
| Size | 32.1 mm (1.264 in) |
| Height | 5.83 mm (0.230 in) |
| Jewels | 20 |
| Frequency | 21,600 vph (3 Hz) |
| Power reserve | 42 h |
| Finish colour | Gilt |
| Crown position | 3 o’clock |
Check dimensions against the fitting drawing before tooling a case.
