Citizen Women's EP5830-56D Eco-Drive Serano Sport Diamond Accented Watch Light powered Eco-Drive Caliber E000 Japanese-quartz movement; charges in natural sunlight or indoor light Max power reserve: 180 days; low charge warning: 7 days; Quick start ability; charge time from stop state to max charge: Incandescent Light - 72 hrs, Outdoors, Cloudy (10,000 Lux) - 22 hrs, Outdoors, Sunny (100,000 Lux) - 11 hrs Durable, hardened mineral crystal; 40 total diamonds - 12 diamond hour markers and 28 diamonds in bezel; case diameter: 26 mm Stainless-steel case; mother-of-pearl dial Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving