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Longines 17.89M
Ligne: 8.75'''
Jewels: 15
Power Reserve: 31 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1940
Diameter: 19.65 mm
Height: 3.35 mm
Hands: 1.30 x 0.65 / 0.16 mm
The Longines 17.89M is a manual wind mechanical watch movement that features a sub-second function. It belongs to a set of movements that includes the Unitas 166, 168, and 172, with differences in specifications not widely known. The Longines 17.89M was primarily used in watches produced around the 1940s.
The Longines 17.89M features the following functions:
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.090 x 220 x 7.5 mm | Manual | Buy mainspring | |
| 1.30 x 0.090 x 220 x 7.0 mm | GR3217 | 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
| Part Description | Reference # | Alternate | Buy |
|---|
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