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| Mar. 1946 |
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Noson Tokei Seisakujo, the forerunner of Rhythm Watch Co., Ltd. established. |
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| Nov. 1950 |
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Rhythm Watch Co., Ltd. established. Head Office: Minato-ku, Tokyo
Factory: Showa-machi, Kitakatsushika-gun, Saitama (currently Kasukabe-shi) |
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| Mar. 1953 |
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Rhythm Watch Co., Ltd. concluded technical, sales, and capital tie-ups with Citizen Watch Co., Ltd. and Citizen Trading Co., Ltd. |
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| Apr. 1961 |
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Ryusui Tokei Co., Ltd., (Minowa-machi, Kami-ina-gun, Nagano-ken) established through joint capital investment by Rhythm Watch Co., Ltd., Ryusuisha, Citizen Watch Co., Ltd., and Citizen Trading Co., Ltd.
(The company became Ryusui Rhythm Watch, and then Nagano Rhythm Co., Ltd. It is integrated into Rhythm Watch Co., Ltd.) |
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| Aug. 1963 |
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Rhythm Watch Co., Ltd., listed in the Second Section of the Tokyo Stock Exchange |
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| Apr. 1965 |
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Mashiko Factory built in Mashiko-machi, Haga-gun, Tochigi |
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| Sep. 1969 |
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Rhythm Watch Co., Ltd. entered into an agreement with Citizen Watch Co. Ltd. for the mutual use of brand names |
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| Apr. 1970 |
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Aizu Factory (currently TOHOKU RHYTHM CO., LTD., a consolidated subsidiary) built in Aizu Wakamatsu-shi, Fukushima |
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| Jan. 1972 |
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Rhythm Watch Co., Ltd. transferred to the First Section of the Tokyo Stock Exchange |
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| Apr. 1973 |
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Rhythm Watch Co., Ltd. developed the world's first 4-MHz class crystal clock movement |
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| Oct. 1977 |
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RHYTHM KOKI CO., LTD. (currently TOHOKU RHYTHM CO., LTD. a consolidated subsidiary) established in Aizu Wakamatsu-shi, Fukushima |
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| Nov. 1977 |
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IBARAKI RHYTHM CO., LTD. (It is integrated into Rtythm Watch Co., Ltd) established in Sekijo-machi, Makabe-gun (currently Chikusei-shi), Ibaraki |
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| Apr.1978 |
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RHYTHM SERVICE CO., LTD. (currently a consolidated subsidiary) established in Sekijo-machi, Makabe-gun (currently Chikusei-shi), IbarakiRhythm Watch Co., Ltd. |
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| Nov. 1982 |
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Awarded the Deming Application Prize
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| Apr. 1989 |
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RHYTHM U.S.A. INC. (currently a consolidated subsidiary) established in the U.S. |
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| Feb. 1990 |
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RHYWACO (H.K.) CO., LTD. (currently a consolidated subsidiary) established in Hong Kong |
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| Mar. 1992 |
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RHYTHM INDUSTRIAL (H.K.) LTD. (currently a consolidated subsidiary) established in Hong Kong |
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| Dec. 1994 |
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RHYTHM PRECISION (H.K.) LTD. (currently a consolidated subsidiary) established in Hong Kong |
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| Jul. 2005 |
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Integrated factories in China and established a new subsidiary. Operations have commenced. |
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| Aug. 2005 |
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RHYTHM PRECISION VIETNAM CO., LTD. (currently a consolidated subsidiary) established in Vietnam |
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| Aug. 2005 |
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Releases first clock ever to bear the "Eco Mark." Receives first-ever green procurement compliance certification for a clock product. |
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| Sep. 2009 |
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RHYTHM PRESICION VIETNAM CO., LTD. is granted ISO9001 and ISO14001 certification. |
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| Mar. 2010 |
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Received first-ever green procurement compliance certification for clock product. |
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| Mar. 2011 |
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RHYTHM INDUSTRIAL(DONGGUAN)LTD. starts operations.
KHOSIN KOGYO CO., LTD. acquired. |
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