Seiko 1B21 Movement Details

Seiko caliber 1B21 is an analog solar radio-controlled watch movement. Production was in the 2020s.
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Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Chronograph?No
Rate:32,768 Hz
Notes:Used in ladies watches.
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Related movements: 1B22 1B32