MODEL: 126600 S/NO: "AN" SERIES ROLEX BOX & CERT DATED JULY 2018. Chronometer in a solid stainless steel case 43 mm fitted with a graduated rotatable stainless steel bezel with ceramic insert. Original Rolex stainless steel oyster bracelet with quick sliding adjustment feature for resizing of wrist length. The special oyster case with a gas escape valve for saturation diving and shoulder protecting the Rolex trip lock winding crown. Waterproof to 4000 feet