Longines HydroConquest Hydroconquest Automatic 41

Reference L3.649.4.56.6

About this watch

The Longines Hydroconquest Automatic 41 is a stunning blend of style, functionality, and reliability. This luxury dive watch exudes classic elegance while offering impressive diving capabilities. Its sophisticated automatic movement, based on the reliable ETA 2824-2, features 25 jewels, a frequency of 28,800 vibrations per hour, and a power reserve of 38 hours. With hours, minutes, seconds, and date functions, this watch is user-friendly for everyone. The rotating bezel with a 0-60 dive scale allows tracking elapsed time underwater, while the sapphire glass is scratch-resistant. Its water resistance of up to 300 meters makes it perfect for serious diving or everyday wear. Whether you're at the office or on a diving expedition, this watch feels just right. Weighing in at the right amount, the Hydroconquest is solid on the wrist without being cumbersome.
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Key Features

  • Stainless Steel Case and Bracelet
  • Sapphire Crystal with Anti-Reflective Coating
  • Water Resistance up to 300 Meters (1000 Feet)
  • Longines Caliber L633.5 Automatic Movement
  • Date Function and Rotating Bezel with Dive Scale

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 41
Reference
L3.649.4.56.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] 2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

Longines - L3.782.4 · $999
A 2024 Longines HydroConquest watch with a black ceramic case and 43mm diameter.

  • Case material: black ceramic
  • Case size: 43mm diameter
  • Year of manufacture: 2024
Posted at
Jan 16, 2026, 3:58 PM
Active
[WTS] Longines HydroConquest Grey L3.780.3.78.6 - $1199

Longines HydroConquest Grey L3.780.3.78.6 - $1199

Longines - L3.780.3.78.6 · $1,199
This Longines HydroConquest is a gray automatic dive watch featuring a 39mm case size, 48mm lug to lug length, and L888 movement.

  • Condition: Used
  • Case size: 39mm diameter
  • Lug to lug length: 48mm
Posted at
Jan 13, 2026, 5:36 AM
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