Seiko 8123 Movement Details

Seiko caliber 8123 is an analog quartz watch movement. Production started around 1982.
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Sub-brands: Seiko 5, Chronos, SQ 100, SQ
Battery:SR1120SW / 381 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?Day + date
GMT / world time?No
Rate:32,768 Hz
Number of jewels:5
Size / diameter:25.6mm
Development division:Suwa (Nagano Prefecture, Japan)
Notes:The same as cal. 8122 but with day display (as well as date). Has a battery life indicator function.
PDF guides: Technical guide : 8122A & 8123A
Related movements: 8121 8122

Part Codes

Screw codes: 022247, 022248