Seiko D138 Movement Details
Seiko caliber D138 is a digital watch movement. Production was in the 1980s.
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|Sub-brands:||Silverwave, Sports 100|
|Battery:||SR1120W / 391 (Silver oxide)|
|GMT / world time?||No|
|Size / diameter:||28.5mm x 27.0mm|
|Development division:||Suwa (Nagano)|
|Notes:||Has an alarm.|