Longines HydroConquest 39mm Automatic Green Dial Steel Bracelet [L3.779.4.06.6]

The Longines HydroConquest 39mm Automatic [L3.779.4.06.6] delivers a refined, more wearable interpretation of Longines’ flagship dive watch, combining professional-grade performance with versatile proportions. Its green lacquered polished dial introduces a rich, contemporary tone, complemented by a matching ceramic unidirectional bezel for enhanced durability and scratch resistance. 

Engineered for serious underwater performance, the watch features a 39 mm stainless steel case, screw-in crown, and screw-down case back, ensuring robust reliability. With 300 m (30 bar) water resistance and a scratch-resistant sapphire crystal with anti-reflective coating on both sides, it is built to perform in demanding conditions while maintaining exceptional clarity. 

At its core is the Longines Calibre L888.5 automatic movement, beating at 25,200 vibrations per hour and offering an impressive 72-hour power reserve. The inclusion of a monocrystalline silicon balance spring enhances resistance to magnetism and ensures long-term precision and stability. 

Completing the watch is a stainless steel bracelet fitted with a double security folding clasp and micro-adjustment system, delivering both comfort and secure wear. With its balanced proportions and professional specifications, the HydroConquest 39mm stands as a compelling option for those seeking a modern Swiss dive watch with everyday versatility.

Technical Specifications

• Brand: Longines
• Collection: HydroConquest
• Reference Number: L3.779.4.06.6
• Case Diameter: 39 mm 
• Case Material: Stainless steel with ceramic bezel 
• Dial Color: Green lacquered polished 
• Movement: Automatic (Longines Calibre L888.5) 
• Power Reserve: ~72 hours 
• Balance Spring: Silicon (anti-magnetic) 
• Functions: Hours, minutes, seconds, date
• Bezel: Unidirectional rotating ceramic bezel 
• Crystal: Scratch-resistant sapphire with anti-reflective coating on both sides 
• Water Resistance: 300 m / 30 bar 
• Crown: Screw-in crown 
• Caseback: Screw-down 
• Bracelet: Stainless steel
• Clasp: Double security folding clasp with micro-adjustment 

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