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Seiko 6139B
Ligne: 11.5'''
Jewels: 25
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1970
Diameter: 26 mm
Height: 5.3 mm
Hands: 1.50 x 0.90 x 0.20 mm
The Seiko 6139B watch movement is similar to the Felsa 4568 movement, with slight differences that are not explicitly understood. The movement features an automatic winding mechanism and a sweep seconds function. It also includes a date feature that can be set by adjusting the time between 21:15-24h. The Seiko 6139B movement was commonly used around the year 1970.
The Seiko 6139B features the following functions:
- Automatic Winding
- Date: set by changing 21:15-24h
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5265 | Ordinary/None | Buy staff |
| 5265 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.120 x 360 x 10.5 mm | GR2975X | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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