Waltham 1908 open-face
Mechanical
c. 1908
No photos yet
Notes
1908-1945
open face calibre
bimetallic screw balance in higher grades with 2 or 4 adjustment screws
Breguet hairspring
in higher grades
pink gold center wheel,
balance ,with 2 or 4 adjustment screws
fine regulation gear (Fig.1), or micrometer (Fig.3)
Dimensions
| Width | 41.8 lignes (94.29 mm) |
|---|---|
| Height | 6.55 mm |
| Stem height | 0.5 mm |
| Hands (H × M × S) | 1.9 × 1.18 × 0.22 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 35 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 17 mm |
| Thickness | 0.19 mm |
| Length | 540 mm |
| Barrel diameter | 2.85 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Waltham |
| Year | c. 1908 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions