Rolex 126618LB Steel & Gold Oyster Perpetual Submariner Date Rolesor Watch.  41mm 18K yellow gold case, screw-down crown with triplock triple waterproofness system, unidirectional rotatable bezel with blue Cerachrom insert and gold coated numerals and graduations, scratch-resistant sapphire crystal with cyclops lens over the date, blue dial, Rolex calibre 3235 automatic movement, approximately 70 hours of power reserve, 18K yellow gold Oyster bracelet with flat three-piece links, folding Oysterlock buckle with glidelock extension system. Waterproof to 300 meters.