A nice website on quartz watches, also including history, timelines, watches (Accutron, Beta21 etc). Make sure to pay them a visit!

First quartz movement, beta21

Robert-Jan Broer
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Robert-Jan Broer

Founder & Editor at Fratello Watches
Robert-Jan Broer, born in 1977, watch collector and author on watches for over a decade. Founder of Fratello Watches in 2004.
Robert-Jan Broer
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