1918 3 Shokosha Watch Research Institute established, the forerunner of Citizen Watch Co., Ltd.
1924 12 First pocket watch completed.
1930 5 Citizen Watch Co., Ltd. established. Yosaburo Nakajima appointed president.
1931 6 First wrist watch completed.
1936 5 Tanashi Factory constructed.
1941 7 Production of machine tools begins.
1945 10 Shinji Nakajima appointed president.
1946 3 Eiichi Yamada appointed president.
1949 6 Citizen Trading Co., Ltd. established.
1952 3 First Japanese-made watch with a calendar introduced.
1953 3 Rhythm Watch Co., Ltd. becomes an affiliate.
1955 12 Export of wrist watches begun.
1960 3 Import-export agreement concluded with the U.S. Bulova Watch Co.
Technical assistance agreement with India.
1964 8 Technology research laboratory established.
12 Citizen Business Machines established.
1965 3 Production of business machines begun. (Adding machines, camera shutters)
10 Office opened in former West Germany, start of full-fledged exports to Europe.
1966 3 First Japanese-made electronic watch “X-8” introduced.
1970 3 CNC automated lathe “Cincom” developed.
1971 6 Precision Machinery Division established.
1976 3 Production of quartz oscillators begun.
1978 2 Head Office moved to Shinjuku Mitsui Bldg. in Tokyo.
1980 6 Industry’s first microcomputer controlled line impact printer introduced.
1981 6 Rokuya Yamazaki appointed president.
10 Systems and Peripherals Division established.
1982 9 Special Sales Division established, full-fledged sales of watch components started.
1983 3 Chip LED lamp CL Series developed.
5 IC sensor electronic thermometer introduced.
1987 6 Michio Nakajima appointed president.
1990 1 Citizen of the Year annual award established.
1992 2 Acquired German machine tool company, Boley GmbH.
1993 5 World’s first multizone “Radio-Controlled Watch” introduced.
1996 4 Solar-powered Eco-Drive received the Eco Mark the first for a watch.
1997 6 Hiroshi Haruta appointed president.
2001 3 Head Office moved to Nishi-Tokyo.
2002 3 Sales of white LED as a backlight for color LCDs started.
6 Makoto Umehara appointed president.
2003 6 World’s first full metal case radio-controlled watch with built-in antenna introduced.
2004 1 Implemented Citizen Code of Conduct.
10 Merged with Citizen Trading Co., Ltd.
2005 4 Citizen Systems Japan Co., Ltd. established.
10 Five consolidated companies (Citizen Electronics, Miyota, Cimeo Precision, Sayama Precision Industries, Kawaguchiko Precision) become wholly owned subsidiaries. Names of Citizen Group companies changed.
2007 4 Company name changed to Citizen Holdings Co., Ltd.
2008 4 Mitsuyuki Kanamori appointed president.
7 Citizen Miyota Co., Ltd. and Citizen Finetech Co., Ltd. merge.
Citizen Finetech Miyota Co.,Ltd. established.
10 Miyano Machinery Inc. becomes a consolidated subsidiary.
2011 4 Citizen Machinery Co.,Ltd. and Miyano machinery Inc. merge.
Citizen Machinery Miyano Co., Ltd. estabilished.
2012 4 Toshio Tokura appointed president.
