Seiko 0634 Movement Details

Seiko caliber 0634 is a digital watch movement produced from around 1975.

Sub-brands: LC, SQ
Battery:SR43W / 386 (Silver oxide)
Accuracy:±10 seconds/month
Day / date?No
GMT / world time?No
Chronograph?Yes
Rate:32,768 Hz
Size / diameter:27.0mm
Height:8.5mm
Development division:Suwa (Nagano)
Notes:The world’s first chronograph digital watch.
PDF guides: Technical guide for 0634A
Related movements: 0674

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