Seiko Group (セイコー・グループ, Seikō Gurūpu) is a Japanese corporate group consisting of three core companies Seiko Holdings Corp. (Seiko), Seiko Instruments Inc. (SII) and Seiko Epson Corp (Epson). The three companies are linked by a common thread of timepiece technology. Epson has established its own brand image and rarely uses 'Seiko.'
Seiko Watch Corp., a subsidiary of Seiko Holdings Corp., markets SEIKO watches while Seiko Instruments Inc. and Seiko Epson Corp. manufacture their movements.
Time Module (TMI), a member of the Seiko Group, was established in 1987 with funding from Seiko Watch Company, Seiko Instruments Inc., and Seiko Epson Corp. to manufacture watch movements.
On January 26, 2009, Seiko Holdings and Seiko Instruments announced that the two companies will be merged on October 1, 2009 through a share swap. Seiko Instruments became a wholly owned subsidiary of Seiko Holdings on October 1, 2009.
The Nikkei 225, or the Nikkei Stock Average, more commonly called the Nikkei or the Nikkei index, is a stock market index for the Tokyo Stock Exchange (TSE). It has been calculated daily by the Nihon Keizai Shimbun newspaper since 1950. It is a price-weighted index, operating in the Japanese Yen (JP¥), and its components are reviewed once a year. The Nikkei measures the performance of 225 large, publicly owned companies in Japan from a wide array of industry sectors.
Orient Watch is a Japanese watch brand owned by Epson. Established as an independent company in 1950, it became a functional subsidiary of Epson in 2009 before being fully integrated into the company in 2017.
Pentax is a brand name used primarily by the Japanese multinational imaging and electronics company Ricoh for DSLR cameras, lenses, sport optics, and CCTV optics. The Pentax brand is also used by Hoya Corporation for medical products & services, TI Asahi for surveying instruments, and Seiko Optical Products for certain optical lenses.
Seikosha was a branch of the Japanese company Seiko that produced clocks, watches, shutters, computer printers and other devices. It was the root of the manufacturing companies of the Seiko Group.
Seiko Holdings Corporation, commonly known as Seiko, is a Japanese maker of watches, clocks, electronic devices, semiconductors, jewelries, and optical products. Founded in 1881, it is known for introducing one of the world's first quartz wrist watches as well as the world's first quartz watch with a chronograph complication.
Seiko Instruments Inc. (SII) is a Japanese company, which develops and commercializes semiconductor, micromechatronics, and precision machining technologies. It is one of business units of the Seiko Holdings Group.
Seiko Epson Corporation, or simply known as Epson, is a Japanese electronics company and one of the world's largest manufacturers of computer printers, and information and imaging related equipment. Headquartered in Suwa, Nagano, Japan, the company has numerous subsidiaries worldwide and manufactures inkjet, dot matrix and laser printers, scanners, desktop computers, business, multimedia and home theatre projectors, large home theatre televisions, robots and industrial automation equipment, point of sale docket printers and cash registers, laptops, integrated circuits, LCD components and other associated electronic components. It is one of three core companies of the Seiko Group, a name traditionally known for manufacturing Seiko timepieces since its founding.
Citizen Watch Co., Ltd. is an electronics company primarily known for its watches and is the core company of a Japanese global corporate group based in Nishitokyo, Tokyo, Japan. In addition to Citizen brand watches, it is the parent of American watch company Bulova, and is also known for manufacturing small electronics such as calculators.
Markel Corporation is a holding company for insurance, reinsurance, and investment operations around the world. Headquartered in Richmond, Virginia and founded in 1930, Markel reports its ongoing underwriting operations in three segments, and products originate from three insurance divisions and one reinsurance division. Through Markel Ventures, they allocate capital to invest in opportunities outside of insurance.
Smiths Group plc is a British multinational diversified engineering business headquartered in London, England. It has operations in over 50 countries and employs around 23,550 staff. Smiths Group is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.
Seiko is a brand name for Japanese clock and watch company Seiko Holdings Corporation.
Topcon Corporation is a Japanese manufacturer of optical equipment for ophthalmology and surveying.
HMT Limited, formerly Hindustan Machine Tools Limited, is a state-owned holding company under the Ministry of Heavy Industries and Public Enterprises in India. The company's wholly owned subsidiaries include HMT Machine Tools Limited and HMT International Limited. HMT also holds a majority stake in Praga Tools Limited (51%).
The Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch. It is now registered on the List of IEEE Milestones as a key advance in electrical engineering.
The IEEE Corporate Innovation Recognition was established by the IEEE Board of Directors in 1985. This award is presented for outstanding and exemplary contributions by an industrial entity, governmental, or academic organization, or other corporate body.
Chino Corporation is a Japanese manufacturer of measuring instruments and controllers. Working as a Japan Calibration Service System-certified supplier, it manufactures and supplies a wide range of electrical measuring equipment, controllers, and systems. Chino also manufactures and supplies calibration systems and conducts traceability tests, and has been certified by the National Institute of Technology and Evaluation as a calibration accreditation company.
Rhythm Co., Ltd., formerly Rhythm Watch until 2020) is a Japanese global corporate group based in Saitama, Japan. The company was founded in 1950. It is well known globally as a manufacturer of watches, clocks, precision equipment, connectors and small displays. From 1955 until 2003 it was headquartered in Tokyo.
Kintarō Hattori was one of the first and most important Japanese watchmakers in history, as well as the founder of Seiko, one of the world's largest manufacturers of watches.