Seiko 4S28 Movement Details

Seiko caliber 4S28 is a hand winding watch movement.
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Sub-brands: Laurel, Brightz
Power reserve:40 hours
Accuracy:+25/-15 seconds/day (Seiko "C" standard)
Day / date?No
GMT / world time?No
Rate:28,800 bph
Number of jewels:24
Notes:Has a small seconds dial.
Related movements: 4S24 4S29