Company History
Date of establishment: November 7, 1950
Principle Business Lines:
Manufacturing and sales of clocks
Manufacturing and sales of precision
Manufacturing and sales of connected terminals
Rhythm
- 1946
- Noson Tokei Seisakujo, the forerunner of RHYTHM WATCH CO., LTD. established.
- 1950
- Established. Head Office: Minato-ku, Tokyo Factory: Showa-machi, Kitakatsushika-gun, Saitama.
- 1951
- Released Japan's first domestically-produced plastic-frame clock.
- 1953
- Concluded technical, sales, and capital tie-ups with Citizen Watch Co., Ltd. and Citizen Trading Co., Ltd.
- 1955
- The headquarters was relocated to Ueno, Taito-ku, Tokyo.
- 1963
- Listed in the Second Section of the Tokyo Stock Exchange.
- 1965
- Mashiko Factory built.
- 1966
- The Zero Defect (ZD) campaign introduced.
- 1969
- Entered into an agreement with Citizen Watch Co., Ltd.for the mutual use of brand names.
- 1970
- Aizu Factory (Integrated into TOHOKU RHYTHM CO., LTD. later) built.
- 1972
- Transferred to the First Section of the Tokyo Stock Exchange.
Became world's number-one manufacturer in clock production volume.
Released quartz clock.
- 1973
- Developed the world's first 4-MHz class crystal clock movement.
- 1976
- The consumer service section established.
- 1977
- RHYTHM KOKI CO., LTD. (Changed company name to TOHOKU RHYTHM CO., LTD. later) established.
- 1978
- RHYTHM SERVICE CO., LTD. established.
- 1982
- Won TQC Deming Application Award.
- 1988
- Started sales of CCD cameras.
- 1989
- RHYTHM U.S.A., INC. established in the U.S.
- 1990
- RHYWACO (H. K.) CO., LTD. established in Hong Kong.
- 1992
- RHYTHM INDUSTRIAL (H. K.) LTD. established in Hong Kong.
China factory went online.
- 1997
- Headquarters was relocated to Sumida-ku, Tokyo.
- 1999
- Released radio controlled clock series.
- 2000
- Donated clocks to a children's facility in Saitama Prefecture in commemoration of RHYTHM WATCH's 50th anniversary of its founding (similar activities conducted annually since then under the name "Time Commemoration Day").
- 2003
- Headquarters was relocated to Omiya-ku in Saitama-shi.
- 2005
- Integrated factories in China and established a new subsidiary. Operations have commenced.
RHYTHM PRECISION VIETNAM CO., LTD. (currently a consolidated subsidiary)established in Vietnam.
Released first-ever clock to bear the "Eco Mark".
- 2010
- Received first-ever green procurement compliance certification for a clock product.
- 2011
- RHYTHM INDUSTRIAL (DONG GUAN) LTD. established.
KYOSHIN KOGYO CO., LTD. acquired(later RHYTHM KYOSHIN CO., LTD)
KYOSHIN VIETNAM.CO.,LTD. acquired.
KYOSHIN INDUSTRIAL ASIA.PTE.LTD acquired.
- 2012
- RHYTHM KYOSHIN HANOI CO.,LTD. established.
- 2013
- PT. UMEDA KOGYO INDONESIA acquired.(currently PT. RHYTHM KYOSHIN INDONESIA)
- 2016
- TOHOKU RHYTHM CO., LTD. acquired PRITEC CO., LTD.
- 2018
- Transitioned to a company with an audit and supervisory committee.
- 2020
- Celebrated 70th anniversary of our founding
I Next GE Inc. acquired.
Three companies, Rhythm Watch Co., Ltd., Tohoku Rhythm Co., Ltd., and Rhythm Kyoshin Co., Ltd., merged, and the trade name changed to RHYTHM CO., LTD.
Tohoku Rhythm
- 1977
- Rhythm Koki Co., Ltd. established as a separate company from Rhythm Watch Co.,LTD.
- 1985
- Completed expansion of factory for business expansion.
- 1995
- Rhythm Precision(H.K.) LTD. established.
- 1998
- Company’s name was changed to Tohoku Rhythm CO., LTD.
- 1999
- integration of the Rhythm Watch's Aizu Factory.
Rhythm Precision(H.K.) LTD. obtained ISO 9002 certification.
- 2000
- Yamagata Factory established.
Oita Sales Office opened.
- 2003
- obtained ISO 9001 certification.
obtained ISO 14001 certification.
- 2005
- RHYTHM PRECISION VIETNAM CO., LTD. established.
- 2006
- Rhythm Precision(H.K.) LTD. obtained ISO 14001 certification.
- 2009
- RHYTHM PRECISION VIETNAM CO., LTD. obtained ISO 9001 and ISO 14001 certification.
Obtained the medical device manufacturing license.
- 2010
- obtained ISO 13485 certification.
- 2011
- China Factory’s name was changed to RHYTHM INDUSTRIAL(DONGGUAN)LTD.
- 2016
- PRITEC CO., LTD. acquired.
- 2018
- New factory completed(guide building)
- 2019
- The medical device manufacturing industry is abolished.
New factory completed(Mold & Molding Building)
- 2020
- Three companies, Rhythm Watch Co., Ltd., Tohoku Rhythm Co., Ltd., and Rhythm Kyoshin Co., Ltd., merged, and the trade name changed to RHYTHM CO., LTD.
Rhythm kyoshin
- 1965
- KYOSHIN KOGYO CO., LTD. established.
- 1982
- Osaka Sales Office opened.
- 1984
- Kawagoe Factory established.
- 1985
- Utsunomiya Factory established.
- 1992
- Goshogawara Factory established.
- 1994
- Singapore Representative Office opened.
- 1995
- KYOSHIN VIETNAM CO., LTD. a wholly-owned subsidiary, established.
- 2001
- KYOSHIN INDUSTRY ASIA PTE LTD established in Singapore.
- 2002
- New Factory of KYOSHIN VIETNAM established.
- 2011
- KYOSHIN KOGYO became a group company of RHYTHM WATCH CO., LTD.
- 2012
- RHYTHM KYOSHIN HANOI CO., LTD. established.
- 2013
- Company’s name was changed to RHYTHM KYOSHIN CO., LTD.
RHYTHM KHOSHIN invested to PT. UMEDA KOGYO INDONESIA (Present:PT. RHYTHM KYOSHIN INDONESIA).
- 2017
- Europe Representative Office opened.
- 2018
- Nagoya Office opened.
- 2020
- Three companies, Rhythm Watch Co., Ltd., Tohoku Rhythm Co., Ltd., and Rhythm Kyoshin Co., Ltd., merged, and the trade name changed to RHYTHM CO., LTD.