Seiko 1E20 Movement Details

Seiko caliber 1E20 is an analog quartz watch movement.
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Battery:SR512SW / 335 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Number of jewels:5
Size / diameter:8.5mm
Stem code: 354930 (tap 13)
Development division:Suwa (Nagano)
Notes:Used in ladies watches.
PDF guides: Technical guide for 1E20A & 1E50A
Parts list for 1E20A
Related movements: 1E50 1E70