Seiko 1F20 Movement Details

Seiko caliber 1F20 is an analog quartz watch movement.
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Sub-brands: Creo, Lassale, Lukia, Exceline, Tissé, Moorea
Battery:SR416SW / 337 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Number of jewels:0
Size / diameter:12.5mm (10.0mm x 11.5mm)
Development division:Suwa (Nagano Prefecture, Japan)
Notes:Used in ladies watches.
PDF guides: Technical guide : 1F20A
Related movements: 1F21

Part Codes

Stem code: 351807 (tap 13)
Screw codes: 022221