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Seiko V401-5050
Ligne: 11 x 12.75'''
Jewels: 3
Frequency: 21600 vph
Period used: ~1975
Size: 24.65 x 28.7 mm
Height: 6.2 mm
Hands: 1.75 x 1.20 x 0.18 mm
The Seiko V401-5050 watch movement, introduced around 1975, features a sweep second hand and a hack feature. The movement includes an electromechanically controlled balance motor with a pointed balance staff that is supported by white jewels. The amplitude stabilization is enhanced by the presence of a diode parallel to the inductor on the balance, which also aids in preventing sparks at the contact point and improving durability.
The Seiko V401-5050 features the following functions:
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 |
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