Citizen Women's EG2903-51Q Eco-Drive Jolie Bracelet Watch Eco-drive is fueled by light so it never needs a battery^Spherical glass^Rose gold tone stainless steel case^Mineral crystal^Water-resistant to 30 M (99 feet) Eco-drive is fueled by light so it never needs a battery Spherical glass Rose gold tone stainless steel case Mineral crystal Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion