Inventor
Seiko Group Corporation, commonly known as Seiko, is a Japanese maker of watches, clocks, electronic devices, and semiconductors. Founded in 1881 by Kintarō Hattori in Tokyo, Seiko introduced the world's first commercial quartz wristwatch in 1969.
Seiko is widely known for its wristwatches. Seiko and Rolex are the only two watch companies considered to be vertically integrated.
Website : http://www.seiko.co.jp/en/index.php