Seiko 9642 Movement Details

Seiko caliber 9642 is a high grade analog quartz watch movement. Production started around 1980.
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Sub-brands: Seagull, King Quartz, Grand Quartz
Battery:SR920SW / 371 (Silver oxide)
Accuracy:±20 seconds/year
Day / date?Date only
GMT / world time?No
Rate:32,768 Hz
Number of jewels:6
Size / diameter:24.0mm
Development division:Daini (Kameido, Tokyo, Japan),Suwa (Nagano Prefecture, Japan)
Notes:Twin quartz for greater accuracy. The same as cal. 9641 but with date display.
Related movements: 9641