Citizen Men's BM6758-06A "Eco-Drive" Stainless Steel Watch Stainless steel watch with brown croco-grain strap and blue Roman numerals Eco-Drive is fueled by natural or indoor light, so it never needs a battery. Protective mineral crystal dial window Features buckle closure, three-hand movement, date window Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion