Discover the power of Eco-Drive technology
In 1976, CITIZEN invented the world's first light-powered analog quartz watch that runs only using light as a power source. This technology, now known as "Eco-Drive", can generate power from any light source, artificial natural and even dim light to keep watches running without ever replacing batteries. As a pioneer of the field, CITIZEN set new challenges for ourselves to bring forth the full potential of power generation using light.
Powered by light
Eco-Drive is designed to convert natural and artificial light into energy to power watches. Watches with Eco-Drive do not require any battery replacement, charging or winding to maintain constant operation.
Easy to charge
Eco-Drive is designed so that any light source, no matter how dim, will generate the energy needed to power the watch. Light itself is the only energy source required to tell the time with an Eco-Drive watch.
Runs even in darkness
In an Eco-Drive timepiece energy is stored in a cell within the timepiece and with a power-reserve of at least 6 months these watches will carry on running, even in the dark.