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