The Longines HydroConquest [L3.840.4.56.6] is a robust Swiss diving watch engineered for reliability, precision, and modern sport styling. As part of Longines’ renowned HydroConquest collection, this timepiece reflects the brand’s long tradition of producing professional sports watches that combine technical performance with refined Swiss craftsmanship.

This model features a bold sunray black dial with luminous hands and hour markers, ensuring exceptional legibility in low-light conditions and underwater environments. The watch is equipped with a unidirectional rotating diving bezeland screw-down crown, essential features that allow divers to safely track elapsed dive time while protecting the movement from water intrusion.

Widely regarded as one of the finest Swiss dive watches in its category, the HydroConquest offers professional-grade durability while maintaining the elegance expected from the Longines brand. The 44 mm stainless-steel case houses a precise Swiss quartz movement and is protected by a scratch-resistant sapphire crystal with anti-reflective coating. With 300-metre water resistance, the HydroConquest delivers exceptional reliability for aquatic adventure while remaining versatile enough for everyday wear.

Technical Specifications

• Model: L3.840.4.56.6
• Collection: Longines HydroConquest
• Case material: Stainless steel
• Case size: 44 mm
• Crystal: Scratch-resistant sapphire crystal with anti-reflective coating
• Dial: Sunray black dial with Super-LumiNova® hands and markers
• Bezel: Unidirectional rotating diving bezel
• Movement: Swiss quartz movement
• Functions: Hours, minutes, seconds, date
• Bracelet: Stainless steel bracelet
• Clasp: Double safety folding clasp with push-piece opening mechanism
• Water resistance: 300 metres / 30 bar

Authorized Dealer | 2-Year Longines International Warranty | Free Shipping Across Canada