The Citizen Eco-Drive watches run on a solar panel and energy storage cell system making their beautiful designs unique in the men’s and women’s watch industry. Diamond, Swarovski Crystal, Dress, Casual, Sport, and Drive designs are available. Materials from 18 Karat Gold, Titanium, Stainless Steel and more are yours to choose. Mother of Pearl, White, Champagne, Blue, Black, and Gray dial colors are offered.