Citizen Women's EG2590-54E Eco-Drive Diamond Accented Dress Watch Light powered Eco-Drive Japanese-quartz movement; Charges in natural sunlight or indoor light Durable, hardened mineral crystal Case diameter: 16 mm Stainless-steel case; Black dial; Cabochon crown Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion