Longines HydroConquest Automatic Sunray Grey Dial Grey Rubber Strap 41 mm [L3.781.3.78.9]

Engineered for aquatic performance with refined Swiss detailing, the Longines HydroConquest Automatic 41 mm [L3.781.3.78.9] combines professional dive-watch capability with subtle luxury accents. The sunray grey dial offers depth and clarity, enhanced by luminous hands and applied indices for confident legibility in all conditions. A unidirectional rotating ceramic bezel anchors the watch’s sport-driven design, distinguished by a rose gold PVD-coated top ring that adds warmth and contrast without overpowering the tool-watch aesthetic.

At its core, this timepiece is powered by a self-winding automatic mechanical movement beating at 25,200 vibrations per hour and offering an approximate 72-hour power reserve, delivering dependable Swiss precision. The stainless steel case features a rose gold PVD-coated screw-down crown, reinforcing water resistance to 30 bar (300 metres) while echoing the bezel’s refined accent. Protected by a scratch-resistant sapphire crystal with multiple layers of anti-reflective coating, and secured on a grey rubber strap with a double safety folding clasp, the Longines HydroConquest [L3.781.3.78.9]balances serious dive-watch performance with elevated everyday versatility.

Technical Specifications

• Case Diameter: 41 mm

• Case Material: Stainless steel

• Bezel: Unidirectional rotating ceramic bezel with rose gold PVD-coated top ring

• Crown: Screw-down crown with rose gold PVD coating

• Dial Color: Sunray grey with Swiss Super-LumiNova

• Crystal: Scratch-resistant sapphire with several layers of anti-reflective coating on both sides

• Movement: Self-winding automatic mechanical

• Frequency: 25,200 vibrations per hour

• Power Reserve: Approximately 72 hours

• Functions: Hours, minutes, seconds, date

• Strap: Grey rubber strap with double safety folding clasp and push-piece opening mechanism

• Water Resistance: 30 bar / 300 metres

• Warranty: 5-Year Longines International Warranty

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