Seiko H448 Movement Details

Seiko caliber H448 is an analog + digital ("ana-digi") watch movement. Production was in the 1980s.
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Battery:SR927W / 395 (Silver oxide)
Accuracy:±10 seconds/month
Day / date?Day + date
GMT / world time?No
Chronograph?Yes
Alarm?Yes
Rate:32,768 Hz
Number of jewels:2
Size / diameter:24.3mm x 23.0mm
Height:2.7mm
Development division:Daini (Kameido, Tokyo)
Notes:Has an alarm and a battery life indicator function where the digits in the display start flashing when the battery is running low.
PDF guides: Technical guide : H448A
Related movements: H449

Part Codes

Stem code: 351307
Screw codes: 012188, 012189

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