Seiko D138 Movement Details

Seiko caliber D138 is a digital watch movement produced in the 1980s.

Sub-brands: Silverwave, Sports 100
Battery:SR1120W / 391 (Silver oxide)
Accuracy:±15 seconds/month
GMT / world time?No
Chronograph?Yes
Rate:32,768 Hz
Size / diameter:28.5mm x 27.0mm
Height:5.9mm
Development division:Suwa (Nagano)
Notes:Has an alarm.