The Longines HydroConquest L3.782.3.78.9 features a sunray grey dial in a 43mm stainless steel case with ceramic unidirectional rotating bezel. The scratch-resistant sapphire crystal with anti-reflective coating on both sides protects the dial. Powered by a self-winding mechanical movement with 72-hour power reserve. Water resistant to 30 bar / 300 meters. Rubber strap with double safety folding clasp.