Case material: Steel; Charge: Automatic; Conditions: Never worn Year : 1991; Presentation condition : Without documents; Model: Submariner Price on request Gmtbroker Reference: 16613 Manufacturer: Rolex Model: Submariner 16613 Serial/Year: X - 1991 Grade: (What's This?) II Gender: Men's Features: Automatic 3135 movement, waterproof, screw-down crown, unidirectional rotatable diver's bezel, scratch-resistant sapphire crystal Case: Stainless steel  (40mm) w/ 18k yellow gold bezel w/ blue insert Dial: Blue w/ luminous markers Bracelet: 18k yellow gold and stainless steel Oyster w/ Oysterlock clasp Box & Papers: Bob's presentation box and Certificate of Authenticity Comments: This pre-owned Rolex Submariner comes with Bob's 3-day satisfaction guarantee and one year warranty Rolex Submariner 16613 The Rolex Submariner was introduced in 1956 as a professional divers watch.  Waterproof up to 1,000 feet and accompanied by a timing bezel, the Submariner proved to be a highly reliable tool for those who ventured far below the surface of the ocean.  Since that time, it has evolved into a highly universal design that transitions effortlessly from adventures on land or at sea.  With the addition of a two-tone variation of the Submariner, Rolex created a highly versatile timepiece that is at home at sea, at the office, or dressed up for a formal affair.  The addition of 18 karat yellow gold also increases the investment value of this men's Rolex.  The two-tone Oyster bracelet, Oysterlock clasp, and 40mm Oyster case are expertly paired with a blue and gold uni