Seiko 8V20 Movement Details

Seiko caliber 8V20 is an analog quartz watch movement.
Find watches with this movement on eBay.

Battery:SR1130W / 389 (Silver oxide)
Accuracy:±20 seconds/month
Day / date?No
GMT / world time?No
Chronograph?Yes
Number of jewels:0
Size / diameter:29.1mm
Height:3.3mm
Notes:Has an alarm and countdown timer. Each function is selected by rotating the bezel.
PDF guides: Battery replacement guide : 8V20A
Technical guide
Related movements: 8V22