MODEL: 116613 LN S/NO: "AN" SERIES BOX & CERT DATED MARCH 2018. Chronometer in stainless steel case 40mm fitted original Rolex stainless steel & 18K yellow gold oyster bracelet. Graduated rotatable 18K yellow gold bezel with black ceramic insert for checking decompression time spans. The special oyster case with shoulders protects the Rolex trip lock winding-crown. Waterproof to 300 m / 1000 feet. Automatic movement, sapphire crystal model. Free polishing upon request by the new owner.