MODEL: 16800 S/NO: "7425xxx" SERIES YEAR 1982. Chronometer in stainless steel case 40mm, original Rolex stainless steel oyster bracelet @ 92% mint condition. Graduated rotatable stainless steel bezel with black 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. Original Tritium Dial, highly collectible.