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Longines 18.90M
Ligne: 11.5'''
Jewels: 15/17
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 25.95 mm
Height: 4.05 mm
Hands: 1.35 x 0.80 / 0.22 mm
Base: General 800
The Longines 18.90M watch movement features various bridge shapes and late samples may include Kif-Duofix combined settings for the escapement wheel. It is a manual wind movement with sub second function. The Longines 18.90M movement was primarily used around the year 1955.
The Longines 18.90M features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.095 x 330 x 9.5 mm | Manual | Buy mainspring | |
| 1.60 x 0.100 x 300 x 9.0 mm | GR4486 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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