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Seiko 6138B
Ligne: 13'''
Jewels: 21/25
Power Reserve: 42 hrs
Frequency: 21600 vph
Type: Automatic
Period used: 1965-
Diameter: 29.4 mm
Height: 4.7 mm
Hands: 1.50 x 0.90 x 0.21 mm
The Seiko 6138B watch movement, introduced in 1965, is an automatic mechanical movement with a sweep second hand and a calendar function. The calendar can be adjusted by changing the time to 20:40-24h. It also features an adjustable stud holder for enhanced precision. This movement has been utilized in watches since 1965.
The Seiko 6138B features the following functions:
- Adjustable Stud Holder
- Automatic Winding
- Calendar
- Date: set by changing 20:40-24h
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.115 x 400 x 11.5 mm | GR2966X | Auto | Buy mainspring |
| 1.20 x 0.125 x 400 x 11.0 mm | GR2985X | Auto | 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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