The Longines HydroConquest L3.781.4.05.2 is a 41mm stainless steel watch featuring a black dial and a green ceramic unidirectional rotating bezel. It is powered by the automatic Longines Caliber L888 movement, offering a 72-hour power reserve. The watch includes a date function and is water-resistant up to 300 meters. It comes with a green fabric strap and a stainless steel tang buckle. Reference number: L3.781.4.05.2.