MST 421
Mechanical
c. 1956
Self-winding (rotor)
No photos yet
Notes
1956-1960
jewel-bearing rotor
detached manual wind
like 420, but 17 jewels and completely pink gold plated
Dimensions
| Width | 25.95 lignes (58.54 mm) |
|---|---|
| Height | 6.55 mm |
| Stem height | — |
| Hands (H × M × S) | 1.5 × 0.9 × 0.2 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 45 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3956 |
|---|---|
| Height | 1.45 mm |
| Thickness | 0.1 mm |
| Length | 360 mm |
| Barrel diameter | 9.5 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | MST |
| Year | c. 1956 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions