Tissot 31-21
Mechanical
c. 1944
Self-winding (rotor)
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Notes
1944-1953
Dimensions
| Width | 31 lignes (69.93 mm) |
|---|---|
| Height | 6 mm |
| Stem height | — |
| Hands (H × M × S) | 1.25 × 0.7 × ? mm |
Technical data
| Beat rate | 19,800 vph (2.75 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 40 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3267-X |
|---|---|
| Height | 1.3 mm |
| Thickness | 0.11 mm |
| Length | 280 mm |
| Barrel diameter | 9 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Tissot |
| Year | c. 1944 |
| Family | — |
| Clone of | — |
Related calibers
Documents
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Updated 7 days ago · 0 revisions