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Longines 18.90ZABC
Ligne: 10.5'''
Jewels: 15
Power Reserve: 36 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1925
Diameter: 23.75 mm
Height: 4.3 mm
Hands: 1.30 x 0.80 / 0.24 mm
The Longines 18.90ZABC watch movement, which was likely produced around 1925, features various bridge layouts. Some of these layouts may be labeled as AS 340 in old data sheets, but each layout may have its own unique designation. Not much is known about the differences between the Longines 18.90ZABC movement and other similar movements such as the 302, 303, 311, 313, 323, 324, and so on. The Longines 18.90ZABC movement is a manual wind movement with a sub second function.
The Longines 18.90ZABC features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.100 x 290 x 9.0 mm | Manual | Buy mainspring | |
| 1.40 x 0.105 x 300 x 9.0 mm | GR3680 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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