Seiko C439 Movement Details

Seiko caliber C439 is a digital watch movement produced in the 1980s.

Battery:SR1130W / 389 (Silver oxide)
Accuracy:±15 seconds/month
GMT / world time?No
Chronograph?Yes
Rate:32,768 Hz
Size / diameter:21.95mm x 30.0mm
Height:5.34mm
Development division:Daini (Kameido, Tokyo)
Notes:Has an alarm and calculator feature.