Seiko 9940 Movement Details

Seiko caliber 9940 is a high grade analog quartz watch movement. Production started around 1978.
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Sub-brands: Grand Quartz
Battery:SR927SW / 395 (Silver oxide)
Accuracy:±10 seconds/year
Day / date?No
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:32,768 Hz
Number of jewels:5
Size / diameter:26.0mm
Height:3.7mm
Development division:Suwa (Nagano Prefecture, Japan)
Notes:Twin quartz for greater accuracy. The same as cal. 9942 but without date display.
Related movements: 9942 9943