Seiko 7903 Movement Details
Seiko caliber 7903 is an analog quartz watch movement. Production was in the 1970s.
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|Battery:||SR41SW / 384 (Silver oxide)
|Day / date?||Day + date|
|GMT / world time?||No|
|Number of jewels:||7|
|Size / diameter:||18.0mm|
|Development division:||Suwa (Nagano Prefecture, Japan)|
|Notes:||Has a battery life indicator function where the seconds hand moves in two-second intervals when the battery is running low.|