Longines HydroConquest Watch 39mm with Black Dial - L37794566
Longines L37794566 HydroConquest Watch 39mm with Black Dial and Stainless Steel Bracelet
Experience the perfect union of refined Swiss artistry and unwavering functionality with the HYDROCONQUEST L3.779.4.56.6 Automatic Watch. Crafted for those who demand outstanding performance and timeless design, this sophisticated timepiece boasts a robust 39mm stainless steel case with a premium ceramic bezel, engineered for both style and endurance. With its sleek black lacquered polished dial, luminous applied indexes, and capable of withstanding extreme underwater conditions, the HYDROCONQUEST delivers exceptional precision powered by an advanced self-winding mechanical movement. Whether navigating daily life or venturing into aquatic pursuits, this watch offers the reliability, elegance, and innovation you expect from a high-caliber Swiss watch.
Features
- Unmatched Swiss Craftsmanship
At the heart of the HYDROCONQUEST L3.779.4.56.6 lies an automatic self-winding mechanical movement. Powered by the exclusive Longines calibre L888.5, this watch beats at 25,200 vibrations per hour, ensuring accurate and reliable timekeeping. What sets this movement apart is the incorporation of a monocrystalline silicon balance-spring—an innovation renowned for its anti-magnetic properties, robust durability, and exceptional precision. With a remarkable power reserve of up to 72 hours, you can trust your timepiece to keep ticking confidently, even if unworn for several days. - Engineered for Durability and Water Resistance
Engineered with adventure in mind, the HYDROCONQUEST is water-resistant up to 30 bar (equivalent to 300 meters or 1,000 feet), making it the perfect companion for aquatic pursuits or everyday wear in challenging conditions. The stainless steel case is accented by a sophisticated ceramic bezel, unidirectional for enhanced safety during diving activities. Complementing this security is a screw-in crown and screw-down case back, forming a tight seal to protect the movement from water intrusion or dust.
The watch’s scratch-resistant sapphire crystal features several layers of anti-reflective coating on both sides, ensuring optimal legibility and maintaining its pristine look through daily use. Every detail is carefully considered to deliver outstanding resilience and dependability, whether you're underwater or attending an upscale event. - Striking Aesthetics and Superior Comfort
Longines has designed the HYDROCONQUEST with a black lacquered polished dial, delivering a deep, sophisticated look that pairs well with any attire. Applied indexes and silvered polished hands offer contrast and visibility, while the inclusion of Swiss Super-LumiNova® on the hour markers and hands ensures the dial remains easily readable, even in low-light conditions.
The 39mm round case is elegantly sized, appealing to both classic and contemporary tastes. With a thickness of 11.70 mm and a weight of 167 grams, the watch provides a presence that is substantial yet comfortable for daily wear. The 20mm lug distance and 48.10mm lug-to-lug measurement contribute to a balanced fit on the wrist.
General
Case
Dial
Gemstone
Strap/Bracelet
Movement
Approximate Dimensions
Warranty Information
Articles
Frequently Asked Questions
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The watch is water-resistant up to 30 bar, which is equivalent to 300 meters or 1,000 feet. This makes it suitable for aquatic activities such as swimming, snorkeling, and recreational diving.
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It features an automatic self-winding mechanical movement powered by the exclusive Longines calibre L888.5. It operates at 25,200 vibrations per hour and includes a monocrystalline silicon balance-spring for enhanced precision and magnetic resistance.
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The watch crystal is crafted from scratch-resistant sapphire and is treated with multiple layers of anti-reflective coating on both sides. This ensures excellent legibility and protects against scratches and reflections during daily use.
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The dial is equipped with Swiss Super-LumiNova on the hour markers and hands, providing strong luminous accents for excellent readability in dark or low-light conditions.
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The case and bracelet are made of high-quality stainless steel, featuring a black and silver-tone ceramic bezel with a unidirectional rotating function. The bracelet includes a double security folding clasp with a micro adjustment system for a secure and comfortable fit.





