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

Reference L3.781.4.05.2

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 Two Tone Ceramic Bezel Full Kit Mint on OEM Rubber

Longines Hydroconquest Two Tone Ceramic Bezel Full Kit Mint on OEM Rubber

Longines - L3.782.3.98.9 · $1,099
This is a two-tone Longines Hydroconquest with a radiant sunburst blue dial, featuring a 41mm version of the watch that's more wearable than its 43mm counterpart.

  • Condition: Mint on OEM rubber strap
  • Model size: 41mm diameter
  • Case material: two tone
  • Bezel type: ceramic
Posted at
Dec 22, 2025, 10:59 PM
Active
[WTS] Monta Oceanking 40 blue bezel black dial, 1 of 2 produced....Longines Hydroconquest 43 gray sunburst dial. Full sets. Thanks.

Monta Oceanking 40 blue bezel black dial, 1 of 2 produced....Longines Hydroconquest 43 gray sunburst dial. Full sets. Thanks.

Monta - Oceanking 40 · $1,850
This listing features a Monta Oceanking 40 with a blue bezel and black dial, one of two produced, as well as a Longines Hydroconquest 43 with a gray sunburst dial.

  • Condition: 9.5/10
  • Case size: 40mm
Posted at
Dec 18, 2025, 9:49 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