Seiko 7820 Movement Details

Seiko caliber 7820 is a high grade analog quartz watch movement. Production was in the 1980s.
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Sub-brands: Chariot, Credor
Battery:SR927SW / 395 (Silver oxide)
Accuracy:±20 seconds/month
Day / date?No
GMT / world time?No
Chronograph?No
Hacking?No
Rate:32,768 Hz
Number of jewels:5
Size / diameter:23.3mm
Height:2.9mm
Development division:Suwa (Nagano Prefecture, Japan)
Related movements: 7830 7832