Specifications 2006 Grade 1 Genuine Swiss made ETA 2836-2 - 25 Jewel movement Rubber seal - O - ring No pinholes on watch case "F" serial number between lugs Solid 440 high grade Stainless Steel Sold 18k gold on 2 -tone models Solid 18k gold crown, bezel on 2-tone Quad wrapped 18k gold on gold models e Solid end link Gold thru buckle on 2-tone models 1 piece forged case construction Scratch-proof sapphire crystal Real 2.5x Date Magnification Closed 6 and 9 date fonts Large threaded screws on band Serial and model no. between lugs Machine perfect engravings between lugs One-piece solid screw down crown Genuine Luminox Hour Markers Shock resistant movement True hologram mark Waterproof up to 30 meters Free Replica Box Set!