Longines HydroConquest 39 mm Automatic – Frosted Blue Sunray Dial – Stainless Steel Bracelet – L3.779.4.99.6

Contemporary Dive Watch Performance with Exclusive Swiss Style

The Longines HydroConquest L3.779.4.99.6 blends professional diving capability with refined Swiss craftsmanship in a versatile 39 mm Swiss Made automatic watch. Designed for those seeking a more compact dive watch without compromising performance, this latest HydroConquest features a striking frosted blue sunray dial paired with a matching blue ceramic unidirectional bezel, creating a distinctive contemporary aesthetic. Powered by Longines' latest automatic movement and equipped with an upgraded bracelet featuring micro-adjustment, it is equally suited to underwater adventures and everyday wear.

The unique frosted blue sunray dial catches the light beautifully while maintaining outstanding legibility. Applied rhodium-plated indexes and silvered polished hands, all treated with Swiss Super-LumiNova®, ensure exceptional readability in low-light conditions. A date display at 3 o'clock adds everyday practicality, while the scratch-resistant sapphire crystal with several layers of anti-reflective coating on both sides provides remarkable clarity and durability.

At its heart is the exclusive Longines Calibre L888.5 automatic movement, beating at 25,200 vibrations per hour and equipped with a silicon balance spring for enhanced resistance to magnetism. Offering an impressive 72-hour power reserve, the movement delivers exceptional reliability. The stainless steel bracelet features a double security folding clasp with an integrated micro-adjustment system, allowing the fit to be fine-tuned without removing links. With 300 metres (30 bar) of water resistance, a screw-in crown, and a ceramic bezel, this HydroConquest is built for serious performance.

Why You'll Love It

• Swiss Made automatic movement
• 39 mm stainless steel case
• Frosted blue sunray dial
• Blue ceramic unidirectional rotating bezel
• Longines Calibre L888.5 automatic movement
• Silicon balance spring
• 72-hour power reserve
• Applied rhodium-plated indexes with Swiss Super-LumiNova®
• Scratch-resistant sapphire crystal with anti-reflective coating on both sides
• Stainless steel bracelet
• Double security folding clasp with integrated micro-adjustment system
• Water resistant to 300 metres (30 ATM)

Technical Specifications

Brand: Longines
Collection: HydroConquest
Model: L3.779.4.99.6
Movement: Automatic
Calibre: Longines L888.5
Jewels: 21
Power Reserve: Up to 72 Hours
Frequency: 25,200 Vibrations per Hour
Balance Spring: Monocrystalline Silicon
Functions: Hours, Minutes, Seconds, Date
Case Material: Stainless Steel
Case Diameter: 39.00 mm
Case Thickness: 11.70 mm
Lug-to-Lug: 48.10 mm
Lug Width: 20 mm
Bezel: Blue Ceramic Unidirectional Rotating Bezel
Crown: Screw-In Crown
Case Back: Screw-Down
Crystal: Scratch-Resistant Sapphire Crystal with Several Layers of Anti-Reflective Coating on Both Sides
Dial: Frosted Blue Sunray
Hour Markers: Applied Rhodium-Plated Indexes with Swiss Super-LumiNova®
Hands: Rhodium-Plated Polished Hands with Swiss Super-LumiNova®
Bracelet: Stainless Steel
Clasp: Double Security Folding Clasp with Push-Button Opening and Integrated Micro-Adjustment System
Water Resistance: 300 metres (30 ATM)
Country of Manufacture: Switzerland

The Longines HydroConquest Collection

The Longines HydroConquest collection has earned its reputation as one of Switzerland's premier modern dive watch collections. Combining robust engineering with refined aesthetics, each HydroConquest features premium materials, ceramic bezels, screw-in crowns, and Swiss mechanical movements designed for both professional diving and everyday wear.

The L3.779.4.99.6 enhances this legacy with its distinctive frosted blue sunray dial, compact 39 mm case, and upgraded bracelet featuring an integrated micro-adjustment clasp. Its exclusive automatic movement with a silicon balance spring and 72-hour power reserve makes it an outstanding choice for enthusiasts seeking exceptional performance in a versatile size.

Five-Year International Warranty

Your Longines automatic timepiece is covered by an official 5-Year International Warranty, protecting against manufacturing defects when purchased from an authorized Longines retailer.

As an Authorized Longines Retailer, Mani Jewellers guarantees that every watch is genuine, brand new, and complete with its original manufacturer packaging and warranty documentation.

Why Buy from Mani Jewellers?

• Authorized Longines Retailer
• Free Insured Shipping Across Canada
• Manufacturer's International Warranty
• Secure Online Shopping
• Family-Owned Canadian Jeweller with Exceptional Customer Service