L3.644.4.56.6Ref

The HydroConquest collection represents dive watches 'par excellence,' honoring ocean conquerors and lovers of the open seas. These models meet strict standards, including 30-bar water resistance, a unidirectional rotating bezel, screw-down case and screw-in crown, lateral protection, and a double-security clasp with an integrated diving extension. This uncompromising safety integrates with the silent world's harmony, combining performance and elegance as only Longines does.