Seiko Markets Quartz Watch: Difference between revisions
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'''See also:''' [[Milestones:Pioneering Work on the Quartz Electronic Wristwatch, 1962-1967|Pioneering Work on the Quartz Electronic Wristwatch]], [[Technological Innovations and the Summer Olympic Games|Technological Innovations and the Summer Olympic Games]] | '''See also:''' [[Milestones:Pioneering Work on the Quartz Electronic Wristwatch, 1962-1967|Pioneering Work on the Quartz Electronic Wristwatch]], [[Technological Innovations and the Summer Olympic Games|Technological Innovations and the Summer Olympic Games]] | ||
[[Category:Integrated circuits|Quartz]] [[Category:Consumer electronics|Quartz]] | |||
Revision as of 20:35, 23 February 2012
This article is a stub. Please help expand the article by using the edit tab.
The Seiko Quartz-Astron 35SQ, the first commercial quartz wristwatch, was introduced in Tokyo on December 25, 1969. Accurate to within five seconds per month, its crucial elements included a quartz crystal oscillator, a hybrid integrated circuit, and a miniature stepping motor to turn the hands.
See also: Pioneering Work on the Quartz Electronic Wristwatch, Technological Innovations and the Summer Olympic Games
