Pioneered by CITIZEN in 1976, Eco-Drive is the technology at the heart of Eco-Drive One. Light passing through the dial is converted into electrical energy by a solar cell. This electrical energy then charges the power cell and is sent to the motor to drive the hands. Eco-Drive can now charge in dim light as well as sunlight, eliminating the need to replace batteries. Running time has also increased to over six months on a single full charge. Eco-Drive continues to evolve, redefining the limits of the possible.
Additionally this model belongs in Radio-Controlled collection with these characteristics:Local time for: 24 cities, Day/Date, Battery discharge indicator, 10 months, Energy reserve display, Antimagnetic, Energy saving mode, Radio controlled clock - EUR, JPY, USA, China, +/- 15 sec per mo
Radio-Controlled technology receives a time signal transmitted by an atomic clock accurate to one second every 100,000 years and automatically adjusts the time and date. Although this has now become one of the many functions that we take for granted on our smartphones, it was actually pioneered by CITIZEN. It is an epoch-making technology that always displays the correct time and eliminates the need for even minor adjustments. By raising the reliability of the watch, Radio-Controlled achieved a technological quantum leap.Can receive time signals from transmitters in four countries: the United States, Germany, China and Japan.