Longines 17.89M
Mechanical
c. 1914
No photos yet
Notes
1914-
open face calibre
bimetallic screw balance
options: Beguet hairspring, Reed's regulator
early two-section regulator for coarse and fine adjustment
Dimensions
| Width | 37.85 lignes (85.38 mm) |
|---|---|
| Height | 3.8 mm |
| Stem height | — |
| Hands (H × M × S) | 1.6 × 0.82 × 0.18 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 31 h |
| 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 | Longines |
| Year | c. 1914 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions