SEIKO WATCH - planning and brand management and sales for the watch business
SEIKO INSTRUMENTS - development and production of watches, machine tools, printers, components and other tools
SEIKO CLOCK - manufacturing and sales of desk, wall and alarm clocks
SEIKO TIME SYSTEMS - master clocks, displays, sports timing equipment, etc.
SEIKO PRECISION - manufacturing and sales of precision components, camera shutters, production equipment
SEIKO NPC - integrated circuit chips
SEIKO SOLUTIONS - manufacturing, sales, service and consulting for information and network systems