BOS Men's Automatic Self-Wind Mechanical Skeleton Watch Black Dial Stainless Steel Band 9008G Imported IP plasma paintcoat case, fashion and Anti abrasion, skeleton dial to see the movements; High quality automatic movement; 316L stainless steel case; Stainless steel butterfly clasp,easy to wear and comfortably Waterproof of 100M, withstands rain and splashes of water, but not showering.