WATCH WHAT IF EDITIONModel : PVD Black Coated Polished Stainless Steel Case, Black Dial, Blue Lume Dot Markers, Ceramic Bezel With Light Blue Diver Index on Matching Nato Strap with PVD Buckle, Light Blue Internal Bezel, Engraved Repetitive "ROLEXROLEX" on Rehaut, Movement: Asian 2813 Automatic Movement, 21J Functions: Hours, Minutes, Seconds, Date Dimensions : Dia 43mm x 18mm Thk Correct Size as Genuine Material : 1 piece forged case construction, solid 316 stainless steel, Thick PVD Black Coating Back : Solid case back Crown : One-piece screw down crown with o ring Crystal:Sapphire Crystal Water-resistant