Seiko 9A85 Movement Details

Seiko caliber 9A85 is an analog quartz watch movement produced from around 1989.

Battery:SR712SW / 346 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:32,768 Hz
Number of jewels:6
Height:0.85mm
Notes:The world's thinnest movement when it was launched in 1989.