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

Reference L3.744.4.56.6

About this watch

The Longines HydroConquest 41 Automatic Chronograph is a timepiece that perfectly balances functionality, style, and durability. This watch, known by its reference number L3.744.4.56.6, is part of Longines' renowned HydroConquest family and offers impressive features that make it stand out in the crowded field of dive watches. The round stainless steel case exudes durability while remaining lightweight on the wrist, making it suitable for both casual outings and formal occasions. The black dial features a mix of indexes and proprietary hands that enhance readability and contribute to the watch's overall aesthetic appeal. With luminous hour markers and hands, it ensures visibility even in low-light conditions. The chronograph sub-dials add complexity and functionality, allowing you to measure elapsed time with precision. Longines has carefully designed these elements to serve a purpose while adding to the watch's character. One of the standout features is its automatic chronograph movement, powered by the Longines caliber L688.2, boasting 27 jewels for accuracy and longevity. With a power reserve of 54 hours and a frequency of 28,800 vibrations per hour, you can trust this watch to keep ticking whether diving deep or enjoying casual days out. The HydroConquest does not disappoint in terms of durability, with a water resistance of 300 meters, making it ideal for divers. The stainless steel case and rotating bezel marked from 0 to 60 provide a robust structure and functional timing features. A sapphire crystal protects the watch from minor scratches, ensuring its clarity and transparency. When it comes to wearing a watch, comfort is key, and the HydroConquest 41 features an adjustable stainless steel bracelet that provides a snug fit on the wrist. With its impressive specifications, durable build, and elegant design, this watch is a reliable choice for anyone seeking a versatile timepiece.
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Key Features

  • Longines caliber L688.2 automatic chronograph movement
  • 300 meters water resistance
  • 41.00 mm diameter stainless steel case
  • Adjustable stainless steel bracelet for comfort fit
  • Sapphire crystal for scratch resistance and clarity

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Chronograph Stainless Steel / Black / Bracelet
Reference
L3.744.4.56.6
Movement
l688-2
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest SS Rose Gold Accents 39mm Ref L3.780.3.78.6 2024 Full Kit plus rubber strap $1100 net to me

Longines Hydroconquest SS Rose Gold Accents 39mm Ref L3.780.3.78.6 2024 Full Kit plus rubber strap $1100 net to me

Longines - L3.780.3.78.6 · $1,100
A Longines Hydroconquest SS watch with rose gold accents and a sunray grey dial, featuring a 39mm case and various water resistance and durability features.

  • Condition: Pre-owned
  • Case Size: 39mm diameter
  • Lug Width: 19mm
  • Thickness: 12mm
Posted at
Aug 23, 2025, 10:43 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
[WTS] Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped

Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped

Longines - L3.780.3 · $999
a Longines HydroConquest Ref. L3.780.3, a Two-Tone Steel & Rose Gold PVD automatic diver watch with a 39mm case size.

  • Case Material: steel and rose gold PVD
  • Water Resistance: 39mm diameter
Posted at
Aug 18, 2025, 9:52 PM
Active
[WTS] Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel

Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel

Longines - L3.781.4.05.2 · $1,240
This Longines HydroConquest features a green ceramic bezel, automatic movement with date display, and a power reserve of up to 72 hours.

  • Condition: Like new/never worn
  • Case size: 41mm diameter
  • Water resistance: 30 bar
  • Crystal material: scratch-resistant sapphire crystal
Posted at
Aug 18, 2025, 7:39 PM
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[WTS] Longines Hydroconquest GMT Black 41mm - Full set with extras $1850

Longines Hydroconquest GMT Black 41mm - Full set with extras $1850

41mm Longines Hydroconquest GMT with full set of extras, including OEM rubber strap and two additional straps.

  • Condition: Excellent
  • Case size: 41mm
  • Included extras: Longines black rubber strap, Longines style leather strap, orange cut-to-size strap
Posted at
Aug 11, 2025, 4:30 PM
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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