Astron (wristwatch)

Seiko Quartz-Astron 35SQ
TypeQuartz
DisplayAnalogue
IntroducedDecember 25, 1969

The Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch. It is now registered on the List of IEEE Milestones as a key advance in electrical engineering.

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