Seiko A439 Movement Details

Seiko calibre A439 is a digital watch movement. Production was in the 1980s.
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Battery:SR927W / 395 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?Day + date
GMT / world time?No
Chronograph?Yes
Alarm?Yes
Rate:32,768 Hz
Size / diameter:26.5mm x 25.4mm
Height:5.7mm
Development division:Daini (Kameido, Tokyo, Japan)
Notes:Has an alarm.