Seiko 3F31 Movement Details

Seiko caliber 3F31 is an analog quartz watch movement produced in the 1990s.
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Sub-brands: Exceline
Battery:SR616SW / 321 (Silver oxide)
Accuracy:±20 seconds/year
Day / date?No
GMT / world time?No
Chronograph?No
Related movements: 3F30 3F81