Waltham 870
Mechanical
c. 1936
No photos yet
Notes
1936-1946, 440000
Breguet hairspring
Grades:
879: 9 jewels
887: 17 jewels
891: 21 jewels
Dimensions
| Width | 19.4 lignes (43.76 mm) |
|---|---|
| Height | 3.4 mm |
| Stem height | — |
| Hands (H × M × S) | 1.12 × 0.62 × 0.18 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | — |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | — |
| Thickness | — |
| Length | — |
| Barrel diameter | — |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Waltham |
| Year | c. 1936 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions