Citizen Watch Co., Ltd. engages in the manufacture and sale of watches, machine tools, and electronic devices and products. It operates through the following segments: Watches and Clocks, Machine Tools, Devices and Components, Electronic Products, and Other Products. The Watches and Clocks segment provides watches and quartz movement. The Machine Tools segment manufactures numerical control automatic lathes. The Devices and Components segment offers light-emitting diode, automotive parts, quartz crystals, micro display devices, and switches. The Electronic Products segment offers calculators, printers, and healthcare equipment. The Other Products segment manufactures jewelry. The company was founded on May 28, 1930 and is headquartered in Nishi Tokyo, Japan.