Calibre catalogue / Tourbillon — Automatic / 3L21E
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3L21E 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.
Tourbillon — Automatic
3L21E
30 Series
- —Automatic tourbillon
| Specification | |
|---|---|
| Size | 27 mm (1.063 in) |
| Height | 5.85 mm (0.230 in) |
| Jewels | 31 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 48 h |
| Finish colour | Platinum tone |
Check dimensions against the fitting drawing before tooling a case.
