Longines 18.49
Mechanical
c. 1889
No photos yet
Notes
1889-
open face calibre
bimetallic screw balance
ratchet on dial side, click-unlocking from rear side by marked screw head, crown mechanism with rocker bar
straight long lever (ligne angulaire) with counterweight and hidden pallets (Fig.3)
Dimensions
| Width | 39.75 lignes (89.67 mm) |
|---|---|
| Height | 7.05 mm |
| Stem height | 0.75 mm |
| Hands (H × M × S) | 1.78 × 0.55 × 0.26 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 | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 15.5 mm |
| Thickness | 0.19 mm |
| Length | — |
| Barrel diameter | 2.5 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Longines |
| Year | c. 1889 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions