Citizen Men's BM6752-02A Eco-Drive Gold-Tone Stainless Steel Watch Gold-tone stainless steel watch with chevron-textured inner dial and blue Roman numerals Eco-Drive is fueled by natural or indoor light, so it never needs a battery 40 mm gold-tone case with mineral dial window Japanese quartz movement with analog display Croco-embossed genuine leather band with buckle closure Water resistant to 30 m (99 ft): In general, withstands splashes or brief immersion in water, but not suitable for swimming.