Seiko 0903 Movement Details

Seiko calibre 0903 is an analogue quartz watch movement. Production started around 1975.
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Sub-brands: 4004, SQ
Battery:SR43SW / 301 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?Day + date
GMT / world time?No
Chronograph?No
Rate:32,768 Hz
Number of jewels:0 or 2
Size / diameter:27.0mm
Height:5.3mm
Development division:Suwa (Nagano Prefecture, Japan)
PDF guides: Technical guide : 0903A
Related movements: 0920 0922 0923

Part Codes

Stem code: 354900
Screw codes: 022451 (case screw), 022493, 022494, 022766