Calibre catalogue / Hand-wound / 78B0A-4.5H
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78B0A-4.5H 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
78B0A-4.5H Hand-wound mechanical movement
7 Series
78B0A-4.5H has the following listed functions: Centre seconds · 24-hour indicator · Day · Date · Small seconds. Its documented specifications are 33 mm diameter; 6.73 mm height; 27 jewels; 28,800 vph (4 Hz); 60 h power reserve; finish colour: White.
- —Centre seconds
- —24-hour indicator
- —Day
- —Date
- —Small seconds
| Specification | |
|---|---|
| Size | 33 mm (1.299 in) |
| Height | 6.73 mm (0.265 in) |
| Jewels | 27 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 60 h |
| Finish colour | White |
| Crown position | 4.5 o’clock |
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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