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Seiko 4006A
Ligne: 12.5'''
Jewels: 26
Lift Angle: 46°
Power Reserve: 41 hrs
Frequency: 28800 vph
Type: Automatic
Period used: 1969-
Diameter: 28.4 mm
Height: 4.8 mm
Hands: 1.52 x 1.00 x 0.17 mm
The Seiko 4006A watch movement, used from 1969 onwards, features jewel bearings for the barrel. The specific differences between the 7200, 7210, and 7220 models are not known. The movement is automatic and includes a sweep second function. The day can be set by changing the time between 19:50 and 0:20 hours, while the date can be quickly adjusted.
The Seiko 4006A features the following functions:
- Automatic Winding
- Date: quickset
- Day: set by changing 19:50-0:20h
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| PALLET FORK AND ARBOR | 035-39 | 710/1344 | Buy part |
| REG FOR ADJUST DEVICE | M/3017 | Buy part | |
| REGULATOR ADJUSTER | M/3018 | Buy part | |
| ROLLER | 044-02 | 730/64 | Buy part |
| STEM, GENUINE | 065-99 | 401/766 | Buy part |
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