Longines HydroConquest Hydroconquest Chronograph Quartz

Reference L3.643.4.56.6

About this watch

The Longines HydroConquest Chronograph Quartz (L3.643.4.56.6) is a stunning timepiece that blends precision engineering with rugged aesthetics. Crafted from high-quality stainless steel, this watch exudes luxury and sophistication. With its impressive water resistance of 300 meters, it's perfect for divers and individuals who lead an active lifestyle. The black dial features mixed indexes and proprietary hands, providing excellent contrast and making it easy to read the time at a glance. The chronograph function adds a layer of versatility, allowing you to time laps or cook with precision. The watch feels substantial yet not cumbersome, making it suitable for extended wear. With its combination of quality materials, Swiss craftsmanship, and timeless design, this watch is a worthy investment for both collectors and newcomers alike.
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Key Features

  • 41mm stainless steel case
  • 300m water resistance
  • Chronograph function with small seconds sub-dial
  • Date display and quartz movement
  • Sapphire crystal glass
  • Rotating bezel with 0-60 scale
  • Adjustable stainless steel bracelet

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Chronograph Quartz
Reference
L3.643.4.56.6
Movement
l541
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 43mm - $950

Longines Hydroconquest 43mm - $950

This Longines HydroConquest 43mm is in excellent working order and comes with a WatchMaxx full kit.

  • Condition: Great condition
  • Depth rating: 200m
Posted at
Aug 21, 2025, 12:02 AM
Active
[WTS] Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped

Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped

Longines - L3.780.3 · $999
a Longines HydroConquest Ref. L3.780.3, a Two-Tone Steel & Rose Gold PVD automatic diver watch with a 39mm case size.

  • Case Material: steel and rose gold PVD
  • Water Resistance: 39mm diameter
Posted at
Aug 18, 2025, 9:52 PM
Active
[WTS] Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel

Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel

Longines - L3.781.4.05.2 · $1,240
This Longines HydroConquest features a green ceramic bezel, automatic movement with date display, and a power reserve of up to 72 hours.

  • Condition: Like new/never worn
  • Case size: 41mm diameter
  • Water resistance: 30 bar
  • Crystal material: scratch-resistant sapphire crystal
Posted at
Aug 18, 2025, 7:39 PM
Active