Model : Polished Stainless Steel Casework, Diamond Crested Bezel, Black Partial Exposed Design Dial, Steel / Numeral Stick Markers, Leather Strap with Insignia Tang Buckle Movement: Asian Eta 2824-2 Automatic Movement, 25J, 28800bph, Perforated Insignia Gold Rotor Functions: Hours, Minutes, Seconds Dimensions : Dia 40mm x 12mm Thk Material : 1 piece forged case construction, solid 316 stainless steel, Back : Display Case back with Detail Serial Engraving on Case rims Crown : One-piece pull out crown with o ring Crystal: Sapphire Sapphire Water Resistant