Seiko KS automatic , Cal.5621 simple dial no day date, hi beat 28800/ case no.360013 , made in Japan. All original parts with good… | Instagram
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King Seiko 5626-7041 Officially Certified Chronometer from May 1974 | Adventures in Amateur Watch Fettling
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Affordable Vintage: King Seiko ref. 5621-7020, and Some Things to Consider When Buying King Seiko - Worn & Wound
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