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Junghans 687.02
Ligne: 10.5'''
Jewels: 17/21
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 23.75 mm
Height: 4.1 mm
Hands: 1.30 x 0.80 x 0.22 mm
The Junghans 687.02 watch movement, developed in 1955, features wheels made of beryllium bronze. Despite its short production period, it encompassed two variants of the manual wind gear and two balances, suggesting an experimental nature. The movement offers functions such as manual wind and sweep seconds. Its period of use can be estimated to be around 1955.
The Junghans 687.02 features the following functions:
- Manual Winding
- Sweep Seconds
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.110 x 290 x 9.5 mm | Manual | Buy mainspring | |
| 1.20 x 0.110 x 300 x 9.0 mm | GR2949 | 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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