Seiko Holdings Corporation is a Japanese company that manufactures and sells watches,clocks,electronic devices,semiconductors and optical products.

The company was founded in 1881, when Kintarō Hattori opened a watch and jewelry shop called "K. Hattori in the Ginza area of Tokyo, Japan. Eleven years later, in 1892, he began to produce clocks under the name Seikosha meaning roughly "House of Exquisite Workmanship". According to Seiko's official company history, titled "A Journey In Time: The Remarkable Story of Seiko" (2003), Seiko is a Japanese word meaning "exquisite" or "success"