Calibre catalogue / Extended reserve / 1B11A
Click the movement to magnify it. Once zoomed, scroll to go closer and drag to move around.
1B11A 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
1B11A
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.