Calibre catalogue / Tourbillon — Twin barrel / 3D81E
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3D81E 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 — Twin barrel
3D81E
34 Series
- —Tourbillon
- —Twin barrel
- —Hours and minutes
- —Automatic
- —Skeletonised
| Specification | |
|---|---|
| Size | 33 × 29 mm |
| Height | 7.5 mm (0.295 in) |
| Jewels | 36 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 72 h |
| Finish colour | Platinum tone |
Check dimensions against the fitting drawing before tooling a case.
