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Seiko 4J40-0AD0
The Seiko 4J40-0AD0 watch movement is an automatic movement featuring a sweep seconds hand, a calendar function, and a beat rate of 18,000 vibrations per hour. It is equipped with 21 jewels.
The Seiko 4J40-0AD0 features the following functions:
- Automatic Winding
- Calendar
- Sweep Seconds
Mainspring Listing
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Incabloc Part Listing
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KIF Part Listing
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