Citizen's principle of light kinetic energy is to fully convert visible light sources (including artificial light, natural light and even weak light) into kinetic energy to drive watches to run. In order to give watches more design space, Citizen has developed two kinds of light kinetic energy batteries.
Photokinetic energy is one of the core technologies of Citizen, and it is also a patented technology of Citizen. The registered trademark is Eco-Drive. Since the advent of the first optical dynamic watch, Citizen has continuously improved the design and technology of optical dynamic watches, overcome many technical problems such as light absorption, energy storage and power saving of dial, and realized the perfect combination of cutting-edge manufacturing technology+exquisite and fashionable appearance+optical dynamic movement.