Longines HydroConquest HydroConquest 41 Automatic Stainless Steel / Ceramic / Grey / Bracelet

Reference L3.781.4.76.6

About this watch

The Longines HydroConquest 41 Automatic in Grey (Model: L3.781.4.76.6) is a statement piece that reflects your style and personality. Founded in 1832, Longines has established itself as a pioneer in Swiss watchmaking, known for their commitment to tradition and precision. The HydroConquest series, launched to celebrate diving and water sports, is a fantastic representation of the brand's ability to merge utility with luxury. This watch exudes confidence with its substantial 41mm case diameter, making it suitable for both casual and formal occasions. The grey dial is stunning, offering a subtle yet striking backdrop for the watch's mixed indexes and proprietary hands, which are coated with luminescent material, ensuring visibility in low-light conditions. At the core of the HydroConquest is the Longines caliber L888.2 movement, engineered for precision and reliability, boasting a 65-hour power reserve. With a water resistance of 300 meters, this watch can handle the pressure of serious diving. The rotating bezel is a critical feature for divers, allowing you to track dive times effectively. This practical function, combined with the watch's aesthetic appeal, makes it a must-have for diving enthusiasts. Priced at $2,000, the Longines HydroConquest 41 Automatic offers excellent value, especially considering its durability, functionality, and Swiss craftsmanship.
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Key Features

  • Longines caliber L888.2 automatic movement
  • 300m water resistance
  • Stainless steel case with ceramic bezel
  • Grey dial with mixed indexes and luminescent hands

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Stainless Steel / Ceramic / Grey / Bracelet
Reference
L3.781.4.76.6
Movement
l888-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Grey
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
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[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