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Longines HydroConquest L3.782.3.78.9

43 mm, Automatic, Stainless steel

The Longines HydroConquest L3.782.3.78.9 combines sporty robustness, technical mastery, and refined style. Its 43 mm stainless steel case is fitted with a ceramic bezel and sapphire crystal with anti-reflective coating. With water resistance up to 30 bar (300 m), this model is built for both everyday challenges and true diving adventures. Detailed product description

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Available in 4 variations

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Product description

The Longines HydroConquest L3.782.3.78.9 combines sporty robustness, technical mastery, and refined style. Its 43 mm stainless steel case is fitted with a ceramic bezel and sapphire crystal with anti-reflective coating. With water resistance up to 30 bar (300 m), this model is built for both everyday challenges and true diving adventures.

The sunray dial is adorned with applied indexes and Arabic numerals at 6, 9, and 12 o’clock, enhanced by luminous hands and Super-LumiNova® markers for excellent readability even in demanding conditions. A date window at 3 o’clock adds practicality while maintaining harmony of design.

Inside beats the automatic calibre L888, operating at 25,200 vibrations per hour with a 72-hour power reserve, confirming Swiss watchmaking precision. The watch is completed with a rubber strap and double safety folding clasp, ensuring comfort and security. The HydroConquest L3.782.3.78.9 embodies the Longines values – performance, durability, and Swiss tradition.

Files for download

Instruction_manual_Longines_L888_en.pdf

Product specifications

Producer: Longines
Supplier code: L3.782.3.78.9
Intended for Men’s
Collection HydroConquest
Watch style Luxury, Sports, Diving
Warranty 5 years
Water resistance i 300 m
Case shape Round
Case size 43 mm
Case material Stainless steel
Crystal Sapphire with anti-reflective treatment i
Bezel High-tech ceramic
Dial Analog
Dial color Grey
Movement Self-Winding i
Functions Date
Strap color Grey
Strap material Soft-touch silicone or high-grade rubber strap
Clasp type Folding clasp i
Quick-release system No i
Longines HydroConquest L3.782.3.78.9

Elegance underwater

Longines HydroConquest

The Longines HydroConquest collection represents the pinnacle of sporty elegance and is designed for those who seek performance, reliability and durability combined with the unmistakable Longines design. This watch pays homage to the world of diving and adventure, while maintaining the typical aesthetics of Swiss tradition.

The HydroConquest models feature a robust stainless steel, ceramic or titanium case, water resistance up to 300 metres and a unidirectional rotating lunette for safe underwater timekeeping. The dials in shades of blue, black, grey or green are complemented by luminescent hands and indices that ensure perfect legibility even in the depths of the ocean.

Precision Swiss automatic movements with high precision and long power reserve work inside the watch. The Longines HydroConquest is the ideal choice for the modern adventurer who expects maximum performance but never gives up elegance - whether underwater or on land.

Longines HydroConquest L3.782.3.78.9

Elegance that endures time

Longines

The Longines brand is synonymous with traditional Swiss watchmaking, combining technical excellence with effortless elegance. Since its founding in 1832 in Saint-Imier, Switzerland, Longines has built a reputation as one of the most respected luxury watch manufacturers in the world. With its signature sandstone wings logo and motto "Elegance is an attitude", the brand symbolises taste, precision and style that appeals to generations around the world.

Each Longines model is the result of precise craftsmanship and an innovative approach, combining tradition with modern technology. Collections such as Master, Conquest, HydroConquest, Spirit and DolceVita reflect the brand's diversity - from sporty performance to sophisticated elegance.

Thanks to its commitment to excellence and its long-standing involvement in sports timekeeping, Longines has become an ambassador of precision and beauty. Whether you're looking for a watch for everyday wear or an exceptional jewel for a lifetime, Longines offers timepieces that never lose their allure - just like the moments they capture.

Longines HydroConquest L3.782.3.78.9

Longines HydroConquest L3.782.3.78.9

On request:
Availability on request

49 400