Calibre catalogue / Extended reserve / 1B08A
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1B08A 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
1B08A
1 Series
- —Automatic
- —Centre seconds
- —Open-heart
| Specification | |
|---|---|
| Size | — |
| Height | 6.5 mm (0.256 in) |
| Jewels | 21 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 72 h |
| Finish colour | White |
Check dimensions against the fitting drawing before tooling a case.