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Citizen

Citizen Watch Company (parent Citizen Holdings Co., Ltd.) is a Japanese manufacturer of electronics, components, and in particular, watches. It has its headquarters in Nishi-Tokyo-shi, Tokyo. It was founded in 1918 as the Shokosha Watch Research Institute, and Citizen Watch Co., Ltd. itself was established in 1930.

In addition, since the early 1970s, Citizen manufactures pocket calculators, which are widely used throughout Asia and Europe.​

Calculators made by Citizen