Seiko W339 Movement Details

Seiko caliber W339 is a digital watch movement.

Sub-brands: Alba
Battery:CR2025 / (Lithium)
Accuracy:±20 seconds/month
Day / date?Day + date
GMT / world time?Yes
Chronograph?Yes
Size / diameter:27.4mm
Height:5.73mm
Notes:Also has a timer function (up to 30 hours).
PDF guides: Battery reset guide
Technical guide for W339A