L3.644.4.56.2Ref

As dive watches par excellence, the HydroConquest series pays homage to those who have sought to conquer the oceans and to open-sea devotees. They fulfill demanding professional criteria: water resistance to 30 bar, unidirectional turning bezel, screw-down case and crown, lateral crown protection, and a double security folding clasp with integrated diving extension. With these guarantees of uncompromising safety, they harmonize performance and elegance—a signature Longines combination.