Longines Hydroconquest Gmt Sunray Blue Dial Men 41mm

Merging high-performance deep-sea diving architecture with practical dual-time global functionality, the Longines HydroConquest GMT 41mm L37904966 represents a major technical evolution in the brand's premier sports line. Sculpted in a 41.00 mm surgical-grade 316L stainless steel case measuring 12.90 mm in thickness with an ergonomic 49.30 mm lug-to-lug span, this model pairs satin-brushed surfaces with mirror-polished bevels and a scratch-proof high-tech blue ceramic unidirectional rotating dive bezel. The dial showcases a radiant sunray royal blue finish with dynamic radial depth, framed by a two-tone 24-hour inner chapter ring and tracked by an arrow-tipped GMT hand for tracking a second time zone. Accented by applied polished indices, gilded accents, and Swiss Super-LumiNova® luminescence alongside a date window at 3 o'clock beneath an anti-reflective sapphire crystal, it is powered by Longines' exclusive in-house Calibre L844 mechanical automatic movement. Beating at 25,200 vibrations per hour (3.5 Hz) and fitted with an antimagnetic monocrystalline silicon balance-spring, it delivers a weekend-proof 72-hour power reserve. Mounted on an articulated stainless steel H-link bracelet equipped with a double-security folding clasp and a fine micro-adjustment system, it is pressure-tested for an impressive 300 metres (30 bar / 1,000 feet) and protected by an official 5-year Longines international warranty.

Key Highlights

• Exclusive Longines Calibre L844 Automatic: In-house Swiss mechanical movement featuring true "flyer" independent local hour adjustment, 25,200 vph frequency, and an extended 72-hour power reserve.

• Antimagnetic Silicon Balance-Spring: Monocrystalline silicon hairspring providing superior resistance to magnetic fields (exceeding ISO 764 standards) and enhanced long-term chronometric stability.

• True "Flyer" GMT Travel Functionality: Independent jumping local hour hand allowing travelers to adjust time zones forward or backward on the fly without stopping the running seconds.

• High-Tech Polished Blue Ceramic Bezel: Unidirectional rotating bezel fitted with an ultra-hard, scratch-resistant blue ceramic insert and a luminescent capsule at 12 o'clock.

• Radiant Sunray Blue Dial: Multi-dimensional radial sunburst finish that shifts between luminous sapphire, royal cobalt, and deep navy tones under changing ambient light.

• Two-Tone 24-Hour Chapter Ring: Integrated day/night rehaut scale providing at-a-glance reference for the second time zone indicated by the arrow-tipped GMT hand.

• Multi-Layer Anti-Reflective Sapphire Crystal: Premium scratch-resistant sapphire crystal treated with multiple anti-reflective coatings on both sides for glare-free readability.

• Professional 300-Metre Water Resistance: Tested to 30 bar (300 m / 1,000 ft) with a screw-in crown, protective crown guards, and a solid screw-down case back.

• Swiss Super-LumiNova® Illumination: High-performance luminescent paint applied across hands, hour markers, and bezel pip for legible underwater and night-time legibility.

• Articulated Stainless Steel H-Link Bracelet: Completely redesigned link geometry featuring brushed outer links and polished center segments for a supple wrist drape.

• Double-Security Clasp with On-the-Fly Micro-Adjustment: Ergonomic folding deployant buckle featuring dual push-button safety and a built-in micro-slider adjustment system.

• Official 5-Year Longines International Warranty: Backed worldwide by Longines' 5-year guarantee provided for timepieces equipped with silicon balance technology.