View source for Quartz Watch ← Quartz Watch You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. '''''This article is a stub. You can help the GHN by expanding it.'''''<br> Seiko Corporation began developing [[Milestones:Electronic Quartz Wristwatch, 1969|quartz time-keeping devices]] in the late 1950s. By 1967, the company had developed a wristwatch prototype, and began marketing the 35SQ Astron, the first commercial quartz wristwatch, in 1969. The idea was based on a discovery by Warren Marrison at [[Bell Labs|Bell Labs]] in 1927, who developed the first quartz clock.<br> [[Category:Components,_circuits,_devices_&_systems]] [[Category:Measurement]] [[Category:Time_measurement]] Return to Quartz Watch. Retrieved from "https://ethw.org/Quartz_Watch"