LONGINES HydroConquest pairs dive-ready performance with a refined look. The 39mm stainless steel model features a black lacquered dial and Swiss Super-LumiNova® for strong legibility in low light. Key attributes: Black | Nero laccato lucido | Stainless steel | Water resistant to 30 bar (300 m) | Automatic self-winding movement | Luminescent hands and markers (Swiss Super-LumiNova®) | Scratch-resistant sapphire crystal | Stainless steel bracelet with folding clasp | Unidirectional rotating bezel | Screw-in crown | Black lacquered polished dial | Ceramic bezel | Date display | Dimensions & fit: Case diameter: 39.00 mm | Composition & care: Case: Stainless steel | Bracelet: Stainless steel | Bezel: Ceramic | Crystal: Sapphire | Dial: Black lacquer with Swiss Super-LumiNova® | Rinse with fresh water after exposure to salt water. Avoid strong shocks and prolonged exposure to extreme temperatures. Service and battery/ movement maintenance by authorised service centres.