Longines HydroConquest Hydroconquest Chronograph

Reference L3.665.4.76.6

About this watch

The Longines HydroConquest Chronograph (L3.665.4.76.6) is a masterful blend of luxury and functionality, designed to withstand underwater adventures while maintaining a stylish appearance. Crafted from high-quality stainless steel, this 48mm watch features a striking silver color and polished case, radiating sophistication. The rotating bezel marked from 0 to 60 tracks elapsed time accurately, while the tactile feel ensures easy operation even with gloves on. At its heart lies the ETA Caliber 7753 automatic movement, offering chronograph functionality and seamless date adjustments. With exceptional water resistance of up to 300 meters, this watch is suitable for professional diving and water sports. The dial boasts mixed indexes and proprietary hands, striking a perfect balance between functionality and elegance. Protected by a sapphire crystal, the dial remains resistant to scratches, ensuring the watch's pristine condition over time.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • 48mm stainless steel case
  • ETA Caliber 7753 automatic movement
  • Rotating bezel with elapsed time tracking
  • Exceptional water resistance up to 300 meters
  • Sapphire crystal protection
  • Chronograph functionality with date adjustments

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Chronograph
Reference
L3.665.4.76.6
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 GMT, Ref: L3.790.4.96.6, 41mm

Longines Hydroconquest GMT, Ref: L3.790.4.96.6, 41mm

Longines - L3.790.4.96.6 · $1,825
The Longines Hydroconquest GMT features a stainless steel case with blue ceramic bezel and a blue dial.

  • Condition: preowned with minor desk rash on bracelet
  • Case size: 41mm diameter
  • Bezel material: blue ceramic
  • Bracelet material: stainless steel
Posted at
Nov 30, 2025, 4:59 PM
Active
[WTS] Longines HydroConquest Automatic 43mm Date l3.782.4.96.6

Longines HydroConquest Automatic 43mm Date l3.782.4.96.6

Longines - L37824-966 · $960
A Longines HydroConquest 43mm Automatic in blue with ceramic, unidirectional rotating bezel, a solid stainless steel case, and water resistance up to 300 meters.

  • Condition: Excellent, used maybe 5 times since new
  • Case size: 43mm diameter
  • Depth rating: 300m
Posted at
Nov 30, 2025, 12:17 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