Gruen 460SS
Mechanical
c. 1945
Self-winding (rotor)
No photos yet
Notes
1945-
Breguet hairspring
first Gruen automatic
Dimensions
| Width | 25.6 lignes (57.75 mm) |
|---|---|
| Height | 6.2 mm |
| Stem height | 1.65 mm |
| Hands (H × M × S) | 1.22 × 0.79 × 0.25 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 34 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 8 mm |
| Thickness | 0.09 mm |
| Length | 225 mm |
| Barrel diameter | 1.47 mm |