The Longines HydroConquest L3.788.4.56.6 combines a black lacquered polished dial with the proven 42mm stainless steel case and ceramic bezel architecture. Rated to 300 metres with an automatic movement delivering 72 hours of power reserve, it is built to perform in demanding conditions. The scratch-resistant sapphire crystal with anti-reflective coating and integrated stainless steel bracelet round out a versatile diver that works on the wrist seven days a week.