The Longines Legend Diver L3.764.4.50.9 is a 39mm stainless steel watch featuring a black lacquered polished dial with painted Arabic numerals and indexes. It is powered by the Longines Caliber L888, a self-winding mechanical movement with a monocrystalline silicon balance-spring, offering a power reserve of approximately 72 hours. The watch includes an internal turning diving flange, a screw-in crown, and is water-resistant up to 300 meters. It is fitted with a black rubber strap secured by a stainless steel buckle. Reference number: L3.764.4.50.9.