L3.673.4.76.6Ref

The HydroConquest series, known as diving watches par excellence, is a homage to ocean conquerors and aficionados of the open sea. With 30 bar (300 meters) water resistance, a unidirectional turning bezel, screw-down case and screw-in crown, lateral crown guard, and double security folding clasp with integrated diving extension, they meet all stringent requirements. Such uncompromising safety blends into the silent world's harmony, representing performance and elegance in Longines' unique way.