Seiko 9442 Movement Details

Seiko caliber 9442 is an analog quartz watch movement. Production started around 1980.
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Sub-brands: Lassale
Battery:SR1120SW / 381 (Silver oxide)
Accuracy:±20 seconds/year
Day / date?Date only
GMT / world time?No
Chronograph?No
Rate:32,768 Hz
Number of jewels:8
Size / diameter:25.6mm
Height:2.8mm
Stem code: 354640
Date wheel code: 801522 (black on white), 801523 (white on black), 801524 (black on gold)
Screw codes: 022411, 022424, 022754, 022903 (battery clamp screw)
Development division:Suwa (Nagano)
Notes:Twin quartz crystals for greater accuracy. The same as cal. 9441 but with date display (no day).
PDF guides: Parts list : 9442A
Technical guide : 9442A & 9443A
Related movements: 9441 9443