Timex M31
Mechanical
Self-winding (rotor)
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Notes
pin-lever escapement
Sophisticated excenter self-winding with just one gear stage (Fig.4, 5):
An excenter on the rotor arbor moves a lever, which turns a ratchet wheel via two clicks. A planet differential gear on the dial side transmits the sum of automatic winding (small center wheel) and manual winding (peripheral gear) via the two planet wheels to the barrel arbor. So it implements both, different gear ratios and perfect decoupling of both winding sources.
Dimensions
| Width | 29.1 lignes (65.64 mm) |
|---|---|
| Height | 5.5 mm |
| Stem height | 1 mm |
| Hands (H × M × S) | 1.75 × 1.2 × 0.21 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 38 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 10 mm |
| Thickness | 0.1 mm |
| Length | — |
| Barrel diameter | 1.2 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Timex |
| Year | — |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions