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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'.
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.
Slow watch Roger W. Smith SMH (short for Société de Microélectronique et d'Horlogerie previous name of the company issued from the merger of ASUAG & SSIH, now Swatch Group)
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 ...
Analogue. Introduced. December 25, 1969. Quartz Movement of the Seiko Astron, 1969 (Deutsches Uhrenmuseum, Inv. Inv. 2010-006) The Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch. It is now registered on the List of IEEE Milestones as a key advance in electrical engineering .
These watches were made until the late 1920s, after the American parent company had collapsed. Ingersoll bought the Trenton Watch Company in 1908, and the bankrupt New England Watch Company in Waterbury, Connecticut, for $76,000 on November 25, 1914. [2] By 1916, the company was producing 16,000 watches per day in 10 models.
The Illinois Watch Company was founded on December 23, 1870, in Springfield, Illinois, by John C. Adams, John Whitfield Bunn (1831–1920), and various additional financiers. Twenty years later, Jacob Bunn Jr., (1864–1926) took over and ran the company until his death in 1926. The Bunn family surname was used in their most famous railroad ...
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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