Seikosha

Seikosha (精工舎) 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.

History

 * 1881 &mdash; Kintarō Hattori opens the watch and jewelry shop "K. Hattori" (Hattori Tokeiten in Japanese; currently named Seiko Holdings Corporation) in the Ginza area of Tokyo, Japan.
 * 1892 &mdash; Seikosha (精工舎) is established in Tokyo as the clock manufacturing arm of K. Hattori.
 * 1917 &mdash; K. Hattori becomes a company (K. Hattori & Co., Ltd.).
 * 1937 &mdash; The watch production division of Seikosha is split off as Daini Seikosha Co., Ltd. (第二精工舎).
 * 1942 &mdash; Daiwa Kogyo, Ltd. is founded in Suwa, Nagano by Hisao Yamazaki.
 * 1943 &mdash; Daini Seikosha establishes a factory in Suwa for manufacturing watches with Daiwa Kogyo.
 * 1959 &mdash; Daiwa Kogyo and the Suwa Plant of Daini Seikosha merge to form Suwa Seikosha Co., Ltd. (諏訪精工舎)
 * 1961 &mdash; Shinshu Seiki Co., Ltd. is established as a subsidiary of Suwa Seikosha.
 * 1970 &mdash; Seikosha is split off from K. Hattori & Co., Ltd., and Seikosha Co., Ltd. is incorporated.
 * 1982 &mdash; K. Hattori & Co., Ltd. is renamed Hattori Seiko Co., Ltd.
 * 1982 &mdash; Shinshu Seiki is renamed Epson Corporation.
 * 1983 &mdash; Daini Seikosha is renamed Seiko Instruments & Electronics Ltd.
 * 1985 &mdash; Suwa Seikosha and Epson merge to form Seiko Epson Corporation.
 * 1990 &mdash; Hattori Seiko Co., Ltd. is renamed Seiko Corporation.
 * 1996 &mdash; Seikosha Co., Ltd. is divided into Seiko Precision Inc. and Seiko Clock Inc.
 * 1997 &mdash; Seiko Instruments & Electronics is renamed Seiko Instruments Inc.
 * 2007 &mdash; Seiko Corporation is renamed Seiko Holdings Corporation.
 * 2009 &mdash; Seiko Instruments becomes a wholly owned subsidiary of Seiko Holdings.
 * 2020 &mdash; Seiko Precision transfers its business operations to Seiko Time Systems Inc. and Seiko Solutions Inc. and dissolves.
 * 2020 &mdash; Seiko Instruments transfers its watch business (development and manufacturing of the Seiko timepieces) to Seiko Watch Corporation.
 * 2021 &mdash; Seiko Clock is merged with Seiko Time Systems to form Seiko Time Creation Inc.
 * 2022 &mdash; Seiko Holdings Corporation is renamed Seiko Group Corporation.