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ECO - DRIVE
The clock that never stops, wherever you are.
One of Citizen's challenges: to develop a technology that guarantees the continuity of the clock's operation, anywhere in the world. In 1976, we invented the first light-fed analog quartz watch that works exclusively using light as a source of energy. This technology, now known as Eco-Drive, can generate energy from any light source (artificial light, natural light and even in dim light) to continue the operation of the clocks without replacing the battery.