Seiko 7830 Movement Details

Seiko caliber 7830 is an analog quartz watch movement. Production started around 1977.
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Battery:SR927SW / 395 (Silver oxide)
Accuracy:±20 seconds/month
Day / date?No
GMT / world time?No
Rate:32,768 Hz
Number of jewels:5
Size / diameter:23.3mm
Development division:Suwa (Nagano Prefecture, Japan)
Notes:Has a battery life indicator function where the seconds hand moves in two-second intervals when the battery is running low.
Related movements: 7820 7832