Longines HydroConquest Hydroconquest Chronograph

Reference L3.665.4.76.2

About this watch

The Longines Hydroconquest Chronograph (L3.665.4.76.2) is a masterpiece of luxury watchmaking, blending tradition with modernity to create a timepiece that's both elegant and robust. Its stainless steel case measures 48mm in diameter, making it a bold statement on the wrist. The sophisticated silver dial features luminescent markers and proprietary hands, adding a unique touch to its overall aesthetic. This chronograph is powered by the renowned ETA Caliber 7753 movement, boasting a 42-hour power reserve and 28,800 vibrations per hour. With a water resistance rating of 300 meters, it's perfect for diving enthusiasts or anyone who enjoys aquatic adventures. The rotating bezel allows you to track elapsed time during dives, while the sapphire glass protects the watch from scratches and exposure to elements. The stainless steel bracelet complements the watch's design and maximizes comfort, making it suitable for all-day wear. Whether you're an adventurer or a professional looking to add a touch of luxury to your wardrobe, this watch is a great fit. It's versatile enough to transition from beach days to black-tie events effortlessly.
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Key Features

  • Stainless Steel Case
  • Sapphire Glass
  • ETA Caliber 7753 Movement

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Chronograph
Reference
L3.665.4.76.2
Movement
7753
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Stainless Steel 48mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest Blue 39mm - $1150

Longines Hydroconquest Blue 39mm - $1150

Longines - Hydroconquest · $1,150
A blue dial Longines Hydroconquest 39mm watch with a full kit, in excellent condition and keeping good time.

  • Condition: Great condition
  • Year purchased: 2025
  • Warranty duration: 5 years
Posted at
Mar 1, 2026, 8:14 PM
Active
[WTS] Longines Hydroconquest 41mm Two Tone

Longines Hydroconquest 41mm Two Tone

A Longines Hydroconquest 41mm Two Tone watch with a black dial and two tone finish. It is in very good condition with some minor wear.

  • Condition: Very Good Pre Owned Condition
  • Diameter: 41mm
Posted at
Feb 27, 2026, 3:34 PM
Active
[WTS] Longines HydroConquest GMT 41mm L3.790.4

Longines HydroConquest GMT 41mm L3.790.4

Longines - L3.790.4 · $1,799
This Longines HydroConquest GMT is a 41mm watch featuring a 6.5 inch bracelet and an aftermarket rubber strap with deployant.

  • Bracelet Length: 6.5 inches
  • Case Size: 41mm
Posted at
Feb 19, 2026, 5:35 PM
Active
[WTS] Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines - L3.782.4 · $1,095
This Longines HydroConquest automatic watch features a black dial and 43mm case size, which provides a strong wrist presence.

  • Condition: very good
  • Case size: 43mm diameter
  • Case wear: normal wear consistent with careful use
Posted at
Feb 18, 2026, 4:40 PM
Active
[WTS] Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

A green ceramic automatic watch from Longines, part of the Hydroconquest series, featuring a Swiss movement with 72-hour power reserve.

  • Condition: Used with signs of wear
  • Case diameter: 41 mm
  • Water resistance: 300m / 30 bar
  • Movement: Longines Calibre L888 series with 72hr power reserve
Posted at
Feb 16, 2026, 4:12 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