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

Reference L3.781.4.06.6

About this watch

The Longines HydroConquest 41 Automatic (L3.781.4.06.6) is a statement piece that combines functionality and style. The stunning green dial, crafted from stainless steel, features a mix of indexes for readability and proprietary hands coated with luminous material for night-time visibility. The ceramic bezel is scratch-resistant and complements the case's polished finish. At its heart lies the Longines Caliber L888.3 movement, boasting a 65-hour power reserve and impressive water resistance of up to 300 meters. Wearing this watch is an experience in itself, with a secure yet comfortable stainless steel bracelet that feels substantial on the wrist. Its striking design and robust features make it a top contender in luxury dive watches.
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Key Features

  • 41mm Stainless Steel Case
  • Rotating Ceramic Bezel
  • Longines Caliber L888.3 Movement
  • 300m Water Resistance
  • Sapphire Crystal

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Stainless Steel / Ceramic / Green / Bracelet
Reference
L3.781.4.06.6
Movement
l888-3
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Green
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950

Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950

Longines - L3.790.4.56.6 · $1,950
This Longines HydroConquest GMT Black is a modern dive watch with excellent everyday wearability, offering both tool watch functionality and travel convenience.

  • Condition: Excellent pre-owned
  • Case size: 41mm diameter
  • Water resistance: 300m
Posted at
Apr 14, 2026, 9:45 PM
Active
[WTS] (Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB

(Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB

This newly released Longines Hydroconquest is a large watch with exceptional fit and finish. It comes in its original packaging with a full kit and warranty.

  • Condition: LNIB (Like New In Box)
  • Case size: 42mm
  • Water resistance: not specified
Posted at
Apr 13, 2026, 2:48 PM
Active
[WTS] Longines Hydroconquest 43mm Full Black Ceramic Ref L3.784.4.56.9 MINT Full Kit $2500

Longines Hydroconquest 43mm Full Black Ceramic Ref L3.784.4.56.9 MINT Full Kit $2500

Longines - L3.784.4.56.9 · $2,500
This Longines HydroConquest features a unique full black ceramic aesthetic with a sleek and stealthy design, while maintaining refined and versatile qualities. The watch boasts excellent scratch resistance, legible dial, and comfortable daily wear.

  • Condition: MINT
  • Case diameter: 43mm
  • Thickness: 13mm
  • Lug-to-lug length: 56mm
Posted at
Apr 10, 2026, 8:26 PM
Active
[WTS] Longines Hydroconquest GMT | 41mm | Sunburst Brown | Excellent Condition

Longines Hydroconquest GMT | 41mm | Sunburst Brown | Excellent Condition

This Longines Hydroconquest GMT is a refresh of the well-loved hydroconquest line range, featuring a new quick-adjust bracelet and updated bezel with brown ceramic insert. The sunray dial looks incredible in all lighting conditions, especially when exposed to sunlight.

  • Condition: Excellent
  • Case size: 41mm diameter
  • Lug to lug: 49.2mm
  • Thickness: 12.8mm
Posted at
Apr 8, 2026, 5:34 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