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CITIZEN Bluetooth watches charge themselves with every kind of light. This means that no battery replacement is necessary. Citizen’s patented Eco-Drive light-powered technology, Eco-Drive, generates power from any type of light – from sunlight to subdued light – to drive the watch and store the excess in a rechargeable cell. Once fully charged, the watch can continue to run for up to 6 months in the dark.
360 Tage, 4 year power reserve in the dark, Bluetooth, Date, Day alert, Eco-Drive, Insuficient charge warning feature, Perpetual Calender, Power saving mode, Shock detection function, Smart phone function