Citizen Ladies Watch EM0666-89D Eco Drive

Citizen women's watch from the Lady collection, Eco Drive quartz movement, Two-tone steel case and bracelet, Mother of pearl dial, Sapphire crystal, WR 5 bar, Reference: EM0666-89D

What is Eco Drive technology?

One of Citizen's challenges: to develop a technology that would guarantee the constant functioning of the watch, anywhere in the world. In 1976, they invented the first light-powered analog quartz watch that operates using only light as a power source. This technology, now known as Eco-Drive, can generate energy from any light source - artificial light, natural light, and even dim light - to keep watches running without ever replacing the battery.

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