Seiko M154 Movement Details

Seiko caliber M154 is a digital watch movement produced in the 1970s.
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Battery:SR1130W / 389 (Silver oxide)
Accuracy:±10 seconds/month
GMT / world time?No
Chronograph?No
Rate:32,768 Hz
Size / diameter:27.0mm
Height:6.1mm
Related movements: M158 M159