MODEL: 16800 S/NO: "747xxxx" SERIES Year 1982. Transitional Submariner with the nicely aged Original Matte Dial. Chronometer in stainless steel case 40mm, flip lock oyster bracelet. Graduated rotatable bezel for checking decompression time spans. Special oyster case with shoulders protects the trip lock winding-crown. Waterproof to 300 m / 1000 feet. Automatic movement calibre 3035, sapphire crystal. Highly collectible. With Rolex Servicing Receipt.