Model : Stainless Steel Case, Chamfered Smooth Bezel, 2 Tone Blue Dial, Red Numeral Markers, on Stainless Steel Oyster Bracelet With Rolesor Clasp Movement: Swiss Eta 2836-2 Automatic MovementFunctions: Hours, Minutes, SecondsDimensions : Dia 37mm x 12mm Thk Material : 1 piece forged case construction, solid 316 stainless steelBack : Solid case back with HollogramCrown : One-piece screw down crown with o ring Crystal: Sapphire crystal Water-resistan