Citizen Women's EG2574-51D Eco-Drive Silhouette Two-Tone Watch Light powered eco-drive Japanese-quartz movement; charges in natural sunlight or indoor light Durable, hardened mineral crystal Case diameter: 16 mm Two-tone stainless steel case; mother-of-pearl dial Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion