Calibre catalogue / Automatic / 1660A
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1660A 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.
Automatic
1660A Automatic mechanical movement
1 Series
1660A has the following listed functions: Large balance · Centre seconds · Automatic · Open-heart · Exposed balance. Its documented specifications are 28 mm diameter; 5.6 mm height; 23 jewels; 28,800 vph (4 Hz); 48 h power reserve; finish colour: White.
- —Large balance
- —Centre seconds
- —Automatic
- —Open-heart
- —Exposed balance
| Specification | |
|---|---|
| Size | 28 mm (1.102 in) |
| Height | 5.6 mm (0.220 in) |
| Jewels | 23 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 48 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.
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