Longines HydroConquest HydroConquest 41 Automatic Stainless Steel / Matte Black / Bracelet

Reference L3.781.4.05.6

About this watch

The Longines HydroConquest L3.781.4.05.6 is a remarkable timepiece that beautifully marries elegance with performance. Its striking design, reliable movement, and practical features make it an excellent choice for anyone looking to invest in a quality watch. It's not just about keeping time; it's about making a statement and enjoying the journey. With a robust design and reliable features, this watch is a true contender in the underwater adventure and everyday elegance arenas. The matte black finish exudes a sense of rugged sophistication, making it suitable for both formal settings and outdoor adventures. The round case measures 41 mm, striking the perfect balance between boldness and wearability. At the core of the HydroConquest L3.781.4.05.6 is the Longines Caliber L888.3, an automatic movement that boasts an impressive 65-hour power reserve.
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Key Features

  • Automatic Movement (Longines Caliber L888.3)
  • Stainless Steel Case and Bracelet
  • Rotating Dive Bezel (0-60)
  • Sapphire Crystal Glass
  • Water Resistance up to 300 meters
  • 41 mm Diameter
  • 21 mm Lug Width

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Stainless Steel / Matte Black / Bracelet
Reference
L3.781.4.05.6
Movement
l888-3
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 41

Longines Hydroconquest 41

Longines - L3.781.4.05.6 · $1,380
The Longines Hydroconquest 41 features a black dial and green ceramic bezel, comes with full kit, box, papers, warranty, and original purchase receipt.

  • Condition: essentially unworn
  • Shipping: CONUS only
Posted at
Oct 15, 2025, 8:12 PM
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[WTS] Reduced! Longines Hydroconquest 41mm ceramic, LNIB literally spotless

Reduced! Longines Hydroconquest 41mm ceramic, LNIB literally spotless

This is a 41mm Longines Hydroconquest with a blue dial and blue ceramic bezel. It has not been worn extensively and comes with the original box and papers.

  • Condition: Like new in box
  • Diameter: 41mm
  • Bezel material: blue ceramic
Posted at
Oct 18, 2025, 8:33 AM
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[WTS] Longines HydroConquest – Ceramic Bezel 39mm, 2029 Warranty

Longines HydroConquest – Ceramic Bezel 39mm, 2029 Warranty

A black dial Longines Hydroconquest Ceramic Bezel in 39mm size, bought new in October 2024.

  • Condition: Great condition on the case, crystal, and dial. Minor scratches from daily wear are visible on the bracelet and buckle.
  • Warranty Valid Until: October 2029
  • Size: 39mm
Posted at
Oct 16, 2025, 5:22 PM
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[WTS] BNIB Longines HydroConquest

BNIB Longines HydroConquest

The Longines HydroConquest is a stylish and functional dive watch designed for everyday wear. It features a stainless steel case with a sleek design and a water-resistant construction.

  • Condition: Brand new in box (BNIB)
Posted at
Oct 15, 2025, 7:10 PM
Active
Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines - L3.781.4.06.9 · $1,095
This Longines HydroConquest is a steel diver's watch with an olive green matte dial and a unidirectional rotating ceramic bezel. The stainless steel case measures 41mm in diameter and has a water resistance of up to 300 meters.

  • Condition: Excellent Condition
  • Case Diameter: 41mm
  • Thickness: 11.9mm
  • Bezel Type: Unidirectional rotating Green Ceramic
Posted at
Feb 5, 2025, 2:47 AM
Active