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Seiko Group (セイコー・グループ, Seikō Gurūpu) is a Japanese corporate group consisting of three core companies Seiko Group Corp. (Seiko), Seiko Instruments Inc. (SII) and Seiko Epson Corp (Epson). The three companies are linked by a common thread of timepiece technology. Epson has established its own brand image and rarely uses 'Seiko'.
Seiko Group Corporation (セイコーグループ株式会社, Seikō Gurūpu kabushiki gaisha), commonly known as Seiko ( / ˈseɪkoʊ / SAY-koh, Japanese: [seːkoː] ), is a Japanese maker of watches, clocks, electronic devices, semiconductors, jewelry, and optical products. Founded in 1881 by Kintarō Hattori in Tokyo, Seiko introduced the ...
Pulsar (watch) A modern analog Pulsar watch. Pulsar is a watch brand and currently a Seiko Watch Corporation of America (SCA) division. Pulsar was the world's first electronic digital watch. Current Pulsar watches are mostly analog and use the same movements in Seikos such as the 7T62 quartz chronograph movement. Pulsar quartz chronograph.
Alba (watch) Alba watch with a 12-hour, 1/20 second chronograph. This watch uses a 7T92 movement manufactured by Seiko. Alba is a sub-brand of Seiko Watch Corporation that produces a line of wristwatches. It first appeared in 1979 in Japan.
Longines Serial Number 183 "Attesa" date 1867. On 6 November 2018, Longines announced discovery of serial number 183, dated 23 October 1867, currently the Oldest Longines watch known. Its caliber is an August Agassiz 4 (AA4). Longines was the world's first watch trademark and the first Swiss company to assemble watches under one roof.
Seiko Precision Inc. Seiko Clock Inc. Parent. Seiko. Seikosha (精工舎, Seikōsha) was a branch of the Japanese company Seiko that produced clocks, watches, shutters, computer printers and other devices. It was the root of the manufacturing companies of the Seiko Group .
Names in this list require an article about the watch brand or watchmaker This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .
The commercial introduction of the quartz watch in 1969 in the form of the Seiko Astron 35SQ and in 1970 in the form of the Omega Beta 21 was a revolutionary improvement in watch technology. In place of a balance wheel which oscillated at perhaps 5 or 6 beats per second, these devices used a quartz-crystal resonator which vibrated at 8,192 Hz ...
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