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

Reference L3.781.4.05.2

Longines HydroConquest 41 Automatic Stainless Steel / Matte Black / NATO

About this watch

The Longines HydroConquest 41 Automatic in matte black is a statement piece that beautifully combines functionality with elegance. Its 41mm round case exudes sophistication, making it suitable for both casual outings and formal events. The watch boasts an impressive water resistance of up to 300 meters, powered by the reliable automatic movement, Longines caliber L888.3, which provides a power reserve of 65 hours. The stunning matte black finish is complemented by mixed indexes on the dial that provide a unique touch, while the rotating bezel adds a functional edge to the watch. The comfortable NATO strap ensures a secure fit without compromising style, making it perfect for both sport and leisure wear. With its rich heritage and precision craftsmanship, Longines has consistently blended tradition with innovation, resulting in a timepiece that is both beautiful and robust.
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Key Features

  • Automatic movement with 65-hour power reserve
  • Water resistance up to 300 meters
  • Durable sapphire crystal
  • Comfortable NATO strap
  • Stunning matte black finish
  • Mixed indexes on the dial
  • Rotating bezel for tracking time underwater

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Stainless Steel / Matte Black / NATO
Reference
L3.781.4.05.2
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 39mm - Boutique Edition / Frosted Blue Sunray (L3.779.4.98.6) - Full Set *2026*

- Longines HydroConquest 39mm - Boutique Edition / Frosted Blue Sunray (L3.779.4.98.6) - Full Set *2026*

Longines - L3.779.4.98.6 · $2,200
The seller purchased this Longines HydroConquest 39mm Boutique Edition with a Frosted Blue Sunray dial only a week ago but it didn't connect with them as expected. The watch is described as beautiful and is being sold in excellent condition.

  • Condition: as new, 9.99/10
  • Size for wrist: 6.5 inches
  • Included items: original box,Longines warranty card
  • Water resistance: not specified
Posted at
Apr 7, 2026, 3:07 PM
Active
View listing on r/WatchExchange
[WTS] Longines HydroConquest 2 tone Green Dial 2024 $1320

Longines HydroConquest 2 tone Green Dial 2024 $1320

Longines - HydroConquest 2 tone Green Dial 2024 · $1,320
  • Image: https://imgur.com/a/bPjxHRP
Posted at
Apr 7, 2026, 9:36 AM
Active
View listing on r/WatchExchange
[WTS] Longines Hydroconquest GMT 41mm

Longines Hydroconquest GMT 41mm

Longines - Hydroconquest GMT 41mm · $1,850
Beautiful Longines Hydroconquest GMT with a 41mm case, included in the sale are extra links, warranty card, and original packaging.

  • Condition: very good condition
  • Water Resistance: not specified
  • Warranty Years: 2
Posted at
Apr 2, 2026, 5:00 PM
Active
View listing on r/WatchExchange
[WTS] Longines Hydroconquest Green Dial Black Bezel

Longines Hydroconquest Green Dial Black Bezel

Longines - Hydroconquest · $1,250
  • Condition: Perfect
  • Year Of Purchase: August 2025
  • Crown And Buckle Straps: 2 additional
  • Shipping Info: US only
Posted at
Apr 1, 2026, 9:51 AM
Active
View listing on r/WatchExchange
[WTS] Longines Hydroconquest GMT - 41mm - Sunray Brown - Box and Papers - Excellent Condition

Longines Hydroconquest GMT - 41mm - Sunray Brown - Box and Papers - Excellent Condition

Longines - Hydroconquest GMT 41mm · $1,350
The Longines Hydroconquest GMT features a 41mm stainless steel case, a true GMT movement, and a brown sunray dial with a brown ceramic bezel insert. It has a quick-adjust bracelet and a sapphire crystal with anti-reflective coating.

  • Condition: Excellent, some minor hairline scratches on the bracelet
  • Case size: 41mm
  • Lug width: 21mm
  • Thickness: 12.8mm
Posted at
Mar 31, 2026, 1:25 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
View listing on RolexForums