Citizen Women's EW3120-59A Eco-Drive Corso Stainless Steel Watch Light powered Eco-Drive Caliber E001 Japanese-quartz movement; charges in natural sunlight or indoor light Max power reserve: 180 days; low charge warning: four days; Quick start ability Durable, hardened mineral crystal; case diameter: 27 mm Stainless-steel case; silver dial; day-and-date functions Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion