Longines HydroConquest Hydroconquest Chronograph

Reference L3.644.4.56.2

About this watch

The Longines Hydroconquest Chronograph (Model L3.644.4.56.2) is a stunning piece that combines sophistication with robust functionality. Founded in 1832, Longines has a rich heritage in watchmaking that spans nearly two centuries. The Hydroconquest line is designed for those who appreciate both style and performance. This timepiece is powered by the revered ETA 7750 movement, an automatic movement providing reliable and accurate timekeeping experience with a frequency of 28,800 vibrations per hour and a power reserve of 42 hours. The watch features a gem-set bezel, stainless steel case with a water resistance of up to 300 meters, and a black dial with mixed indexes for high visibility. The proprietary hands are designed for readability, ensuring quick time-telling in low-light conditions. With its impressive water resistance and robust chronograph functionality, this watch is perfect for divers, snorkelers, and anyone who appreciates luxury and performance.
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Key Features

  • ETA 7750 automatic movement
  • Water resistance up to 300 meters
  • Gem-set bezel
  • Stainless steel case
  • Black dial with mixed indexes
  • Proprietary hands for readability
  • Robust chronograph functionality

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Chronograph
Reference
L3.644.4.56.2
Movement
7750
Movement Features
  • Hours, Minutes, Small Seconds
  • Date, Day
  • Chronograph
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 41mm w/ Box *Price Drop*

Longines Hydroconquest 41mm w/ Box *Price Drop*

A Longines Hydroconquest watch with a 41mm case size, excluding the crown guards, and a 7 inch wrist bracelet. It comes in its original box.

  • Bracelet Size: 7 inch
  • Case Diameter: 41mm
Posted at
Apr 28, 2025, 4:52 PM
Active
[WTS] Longines Hydroconquest 43MM

Longines Hydroconquest 43MM

A Longines HydroConquest Automatic men's watch with a 43mm blue dial and ceramic bezel, featuring minor scratches on the link.

  • Condition: minor scratches on the links
  • Case size: 43mm diameter
  • Movement type: automatic
Posted at
Apr 21, 2025, 11:49 PM
Active
[WTS] Longines Hydroconquest 41mm w/ Box

Longines Hydroconquest 41mm w/ Box

A Longines Hydroconquest in 41mm case size, excluding crown guards, with a 7 inch wrist size and noticeable markings on the bracelet.

  • Bracelet size: 7 inch
  • Case size (excluding crown guards): 41mm
Posted at
Apr 20, 2025, 5:24 PM
Active
[WTS] Longines Hydroconquest Cermaic x2 Seiko King Turtle

Longines Hydroconquest Cermaic x2 Seiko King Turtle

Two Longines Hydroconquests, one blue and one black, with ceramic bezels, in addition to a Seiko King Turtle with waffle dial.

  • Condition: Really good shape
  • Case Size: 41mm diameter
  • Water Resistance: 200m depth rating
  • Crystal Type: Ceramic Bezel
Posted at
Apr 20, 2025, 2:05 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