Seiko A158 Movement Details

Seiko caliber A158 is a digital watch movement produced in the 1970s.
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Battery:SR1130W / 389 (Silver oxide)
Accuracy:±10 seconds/month
Day / date?Day + date
GMT / world time?No
Chronograph?Yes
Rate:32,768 Hz
Size / diameter:30.1mm
Height:6.5mm
Screw codes: 022493
Development division:Suwa (Nagano)
Notes:Has a battery life indicator function where the display starts flashing when the battery is running low.
Related movements: A156 A159