Hamilton 987S
Mechanical
c. 1940
Hacking
No photos yet
Notes
1940-1948, 87400
Breguet hairspring
Dimensions
| Width | 24.8 lignes (55.94 mm) |
|---|---|
| Height | 4.6 mm |
| Stem height | 0.4 mm |
| Hands (H × M × S) | 1.4 × 0.8 × 0.2 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 | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | Yes |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | — |
| Thickness | — |
| Length | — |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Hamilton |
| Year | c. 1940 |
| Family | — |
| Clone of | — |
Related calibers
Documents
None
Updated 7 days ago · 0 revisions