Quartz Watch
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'''''This article is a stub. You can help the GHN by expanding it.'''''<br> | '''''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> | + | 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_& | + | [[Category:Components,_circuits,_devices_&_systems]] |
| + | [[Category:Measurement]] | ||
| + | [[Category:Time_measurement]] | ||
Latest revision as of 21:22, 13 February 2012
This article is a stub. You can help the GHN by expanding it.
Seiko Corporation began developing 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 in 1927, who developed the first quartz clock.
