Seiko 1B21 Movement Details
Seiko calibre 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. |
PDF guides: | |
Related movements: | 1B22 1B32 |