Seiko 0644 Movement Details

Seiko caliber 0644 is a digital watch movement. Production was in the 1970s.
Find watches with this movement for sale. Buy watches with this movement.

Sub-brands: LC
Battery:SR43W / 386 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Rate:32,768 Hz
Size / diameter:27.0mm
Development division:Suwa (Nagano Prefecture, Japan)
PDF guides: Technical guide : 0644A & 0664A
Related movements: 0624 0664