Seiko W306 Movement Details

Seiko caliber W306 is a digital watch movement.
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Battery:CR2016 / (Lithium)
Accuracy:±20 seconds/month
Day / date?Day + date
GMT / world time?No
Chronograph?Yes
Alarm?Yes
Size / diameter:27.4mm
Height:4.8mm
PDF guides: Battery replacement guide : W306A
Technical guide
Related movements: W307 W308 W309