Seiko 7439 Movement Details

Seiko caliber 7439 is an analog quartz watch movement. Production was in the 1980s.
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Battery:SR721SW / 362 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?Date only
GMT / world time?No
Chronograph?No
Rate:32,768 Hz
Number of jewels:2
Size / diameter:22.0mm
Height:2.3mm
Stem code: 354076
Date wheel code: 801110, 801283
Screw codes: 012170, 012196, 012197, 012354, 012469 (case screw), 012778
Development division:Daini (Kameido, Tokyo)
Notes:The same as cal. 7430 but with date display.
PDF guides: Technical guide : 7430A, 7431A & 7439A
Parts list : 7439A
Related movements: 7430 7431 7433

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