Seiko 7C46 Movement Details

Seiko caliber 7C46 is an analog quartz watch movement. Production started around 1986.
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Sub-brands: SQ, Marinemaster, Prospex
Battery:SR43SW / 301 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?Day + date
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:32,768 Hz
Number of jewels:7
Size / diameter:27.0mm
Height:3.7mm
Stem code: 372925 (movement side), 373617 (crown side)
Date wheel code: 801679 (black on white)
Screw codes: 022257, 022493, 022648
Development division:Suwa (Nagano)
Notes:Used in diving watches, in particular "tuna" watches. Uses a two-part stem.
PDF guides: Technical guide : 7C43A & 7C46A
Related movements: 7C43 7N36 7N85 V736

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