Longines HydroConquest 42mm Automatic Green Dial Steel Bracelet [L3.788.4.06.6]

The Longines HydroConquest 42mm Automatic [L3.788.4.06.6] delivers a bold evolution of the brand’s iconic dive watch, combining high-performance engineering with a striking contemporary aesthetic. Its green lacquered polished dial introduces depth and character, complemented by a matching ceramic unidirectional bezel for enhanced durability and scratch resistance. 

Crafted in a 42 mm stainless steel case, this timepiece is built for serious underwater performance. A screw-in crown, screw-down case back, and 300 m (30 bar) water resistance ensure reliability in demanding aquatic environments, while a scratch-resistant sapphire crystal with anti-reflective coating on both sides provides exceptional clarity. 

At its core, the watch is powered by 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 springenhances resistance to magnetism and improves long-term precision. 

Completing the design is a stainless steel bracelet fitted with a double security folding clasp and micro-adjustment system, ensuring a secure and comfortable fit for everyday wear or active use. Combining sport performance with refined Swiss craftsmanship, the HydroConquest remains a cornerstone of modern dive watch design.

Technical Specifications

• Brand: Longines
• Collection: HydroConquest
• Reference Number: L3.788.4.06.6
• Case Diameter: 42 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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