Certina 28-451
Mechanical
c. 1953
Self-winding (rotor)
Date
No photos yet
Notes
1953-1960
Dimensions
| Width | 28 lignes (63.16 mm) |
|---|---|
| Height | 6.55 mm |
| Stem height | — |
| Hands (H × M × S) | 1.5 × 0.9 × 0.18 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | 51 ° |
| Power reserve | 42 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | Yes |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR3256-X |
|---|---|
| Height | 1.3 mm |
| Thickness | 0.1 mm |
| Length | 340 mm |
| Barrel diameter | 10 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Certina |
| Year | c. 1953 |
| Family | — |
| Clone of | — |
Related calibers
Documents
None
Updated 7 days ago · 0 revisions