Corporate History

Rhythm Tohoku Rhythm Rhythm Kyoshin

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.

Business Philosophy

  • Business Philosophy

Business

  • Our Business(Livingware/Precision parts)
  • Financial Highlights [PDF]

Our Corporate Governance Position

  • Our Corporate Governance Position

About Us

  • Company Profile Document[PDF]
  • CorporateProfile
  • Officer List
  • Major Shareholder
  • Corporate History
  • Affiliated Company
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