Longines HydroConquest HydroConquest 39 Automatic Stainless Steel / Black / Bracelet

Reference L3.741.4.56.6

About this watch

The Longines HydroConquest L3.741.4.56.6 is a statement of style, precision, and functionality. This rugged watch with a stunning black dial and robust stainless steel construction is designed to withstand the rigors of underwater adventures while maintaining a sophisticated look for everyday wear. The rotating bezel marked with a clear 0-60 scale adds utility and tactile feedback. At its heart lies the Longines caliber L888.2, a movement that speaks volumes about precision and reliability with a 65-hour power reserve and frequency of 25,200 vibrations per hour. With a water resistance of 300 meters, this watch is designed for serious divers and water enthusiasts. Its combination of aesthetics and functionality makes it a worthy addition to any collection.
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Key Features

  • 41mm Stainless Steel Case
  • Sapphire Glass
  • Rotating Dive Bezel (0-60 scale)
  • Longines Caliber L888.2 Movement
  • 65-hour Power Reserve
  • 300m Water Resistance
  • Adjustable Stainless Steel Bracelet

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 39 Automatic Stainless Steel / Black / Bracelet
Reference
L3.741.4.56.6
Movement
l888-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest Green 41mm

Longines Hydroconquest Green 41mm

A 41mm Hydroconquest Green, a sporty yet elegant watch from Longines, featuring a rubber strap and a durable design.

  • Condition: Pre-owned with scuffs on clasp and lugs
  • Size: 41mm diameter
  • Strap Size Fit: 7.25 inches and smaller
  • Retail Price: 1775
Posted at
Sep 2, 2025, 9:13 AM
Active
[WTS] Longines Hydroconquest GMT 43mm Olive Dial Ref L3.890.4.06.6 Full Kit $1700 net to me

Longines Hydroconquest GMT 43mm Olive Dial Ref L3.890.4.06.6 Full Kit $1700 net to me

Longines - L3.890.4.06.6 · $1,700
The Longines Hydroconquest GMT is a serious dive watch with a striking sun ray olive dial and ceramic bezel, featuring a 43mm case, 300m water resistance, and L844 Caliber.

  • Condition: Excellent with small marks on the clasp
  • Case size: 43mm diameter
  • Water resistance: 300m depth rating
  • Thickness: 12.9mm
Posted at
Aug 30, 2025, 11:02 AM
Active
[WTS] Longines Hydroconquest 43mm - $950

Longines Hydroconquest 43mm - $950

This Longines HydroConquest 43mm is in excellent working order and comes with a WatchMaxx full kit.

  • Condition: Great condition
  • Depth rating: 200m
Posted at
Aug 21, 2025, 12:02 AM
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