What is the ideal system for precise timekeeping? Capturing a time signal from an atomic clock accurate to 1 second every 100,000 years, iRadio-Controlled auto-corrects the time and calendar in your watch. Combined with CITIZEN's light-powered Eco-Drive technology, the result is ultraprecise timekeeping with no need to replace batteries or adjust the time. In 1993, CITIZEN released the world's first multi-band radio-controlled watch. As a pioneer, we continue to lead the field.