Casio Women's Classic Round Analog Watch, 3-Hand Analog Feature, and Water Resistant, White/Silver Face with Classic Round Design, and Resin Band Woman's Dressy Classic 3-Hand Analog Round Watch Accuracy: +/-20 seconds per month, Water Resistant Protective mineral crystal protects watch from scratches Battery SR621SW Approx. battery life: 2 years Size of case / total weight 30.0 x 24.0 x 7.7mm / 10g