Calibre catalogue / Tourbillon — Complicated / 3900E

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3900E 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 — Complicated
3900E
39 Series
- —Tourbillon
- —Day/night indicator with hand
- —Power-reserve indicator
- —Hours and minutes
| Specification | |
|---|---|
| Size | 36 mm (1.417 in) |
| Height | 6.3 mm (0.248 in) |
| Jewels | 22 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 60 h |
| Finish colour | Platinum tone |
Check dimensions against the fitting drawing before tooling a case.

