Longines HydroConquest 42mm – Milanese mesh bracelet
The Longines HydroConquest 42mm is part of the brand’s tradition of sports watches. Designed for performance in an aquatic environment, it combines a robust construction in stainless steel, a ceramic bezel, and a reliable automatic movement with an extended power reserve.
Design and features
The 42mm round stainless-steel case features a refined finish paired with a unidirectional rotating ceramic bezel. The polished lacquered black dial offers excellent legibility thanks to applied indexes and rhodium-plated hands coated with Swiss Super-LumiNova®.
The sapphire crystal with double-sided anti-reflective treatment ensures clear reading in all conditions.
Movement and performance
The watch is powered by the Longines automatic caliber L888. It beats at 25,200 alternations per hour and incorporates a silicon balance spring for improved resistance to magnetic fields.
Its power reserve reaches up to 72 hours, providing comfortable everyday autonomy. 300m water resistance and the screw-down crown ensure reliable use for diving.
Key features
• Longines automatic movement L888
• 72-hour power reserve
• 300m water resistance
• Unidirectional ceramic bezel
• Double-sided anti-reflective sapphire crystal
• Swiss Super-LumiNova®
• Clasp with micro-adjustment
Technical details
• Diameter: 42mm
• Thickness: 11.70mm
• Lug width: 21mm
• Lug-to-lug height: 51.20mm
• Weight: 168g
• Case: Stainless steel and ceramic bezel
• Back: Screw-down
• Crown: Screw-down
• Crystal: Sapphire with double-sided anti-reflective treatment
• Movement: Automatic mechanical
• Caliber: L888
• Frequency: 25,200 alternations/hour
• Functions: Hours. minutes. seconds. date
• Magnetic resistance: Yes
• Bracelet: Stainless steel
• Clasp: Double-safety folding clasp with micro-adjustment
Why choose this Longines diving watch?
The Longines HydroConquest 42mm diving watch is for those seeking a reliable, legible, and versatile timepiece. Suitable for both sports use and everyday wear, it stands out for its balance between technical performance and controlled design.


















