Seiko 3421 Movement Details

Seiko caliber 3421 is an analog quartz watch movement produced in the 1980s.
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Sub-brands: Silverwave, Laurier
Battery:SR726SW / 397 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:32,768 Hz
Number of jewels:6
Size / diameter:17.8mm
Height:3mm
Stem code: 354545, 354546
Development division:Suwa (Nagano)
Notes:Same as cal. 3422 and cal. 3423 but without a day/date display.
PDF guides: Technical guide for 3421A & 3423A
Related movements: 3422 3423