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Seiko 5646A
Ligne: 13'''
Jewels: 17
Power Reserve: 44 hrs
Frequency: 19800 vph
Type: Automatic
Period used: 1964-1972
Diameter: 29.5 mm
Height: 4.7 mm
Hands: 1.50 x 0.90 x 0.20 mm
Base: A. Schild 1831
The Seiko 5646A watch movement, produced from 1964 to 1972, was specifically designed for the Ocean Star model and features a lever for releasing the stem from the dial side. The movement's finish, including that of the rotor, does not correlate with the production date. For a detailed description of the technical aspects, please refer to the Mido 1147OC. In terms of functionalities, this movement offers automatic winding, a sweep second hand, adjustable day display within a +/-24h range, quickset date adjustment via repeated crown pushing, Incabloc Shock Protection, and a day and date display.
The Seiko 5646A features the following functions:
- Automatic Winding
- Date: quickset by repeated pushing the crown
- Day and Date Display
- Day: set by +/-24h
- Incabloc Shock Protection
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.00 x 0.115 x 360 x 11.0 mm | GR2465X | 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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