Calibre catalogue / Extended reserve / 7A27A
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7A27A 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.
Extended reserve
7A27A Hand-wound mechanical movement
7 Series
7A27A has the following listed functions: Small seconds · Fine finishing. Its documented specifications are 30 mm diameter; 3.65 mm height; 24 jewels; 28,800 vph (4 Hz); 80 h power reserve; finish colour: White.
- —Small seconds
- —Fine finishing
| Specification | |
|---|---|
| Size | 30 mm (1.181 in) |
| Height | 3.65 mm (0.144 in) |
| Jewels | 24 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 80 h |
| Finish colour | White |
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.
Same base calibre
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