Longines HydroConquest Hydroconquest Automatic 41 Blue

Reference L3.642.4.96.6

About this watch

The Longines Hydroconquest Automatic 41 Blue embodies the perfect blend of style and functionality, featuring a stunning blue dial, robust stainless steel case, and reliable automatic movement. Its rotating bezel with 0-60 markings makes it ideal for divers, while its comfortable design allows for easy wear in both formal and casual settings. With its impressive 300m water resistance and lightweight construction, this watch is perfect for those who love the water. The Hydroconquest's exceptional build quality, combined with Longines' reputation for craftsmanship, make it a standout choice for any watch enthusiast. Whether you're timing a dive or just need to keep track of your schedule, this watch delivers excellent accuracy and reliability. Its versatile design allows it to transition seamlessly from beach to town, making it the ultimate companion for adventurous spirits. With its stunning blue dial, robust build, and reliable movement, the Longines Hydroconquest Automatic 41 Blue is a true gem in the world of luxury watches.
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Key Features

  • 41mm stainless steel case
  • Rotating bezel with 0-60 markings
  • 300m water resistance
  • Longines caliber L633.5 automatic movement
  • Sapphire glass crystal
  • Date function at 3 o'clock
  • Luminous hands and markers

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 41 Blue
Reference
L3.642.4.96.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 41mm Blue 2023 Model – $850 Shipped

Longines Hydroconquest 41mm Blue 2023 Model – $850 Shipped

This is a 2023 Longines Hydroconquest 41mm automatic diver watch with a blue sunburst dial and ceramic bezel. It's in excellent condition with strong power reserve and comes with all original accessories.

  • Condition: Excellent with light signs of wear
  • Case size: 41mm diameter
  • Water resistance: 200m depth rating
Posted at
Feb 19, 2026, 12:05 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
[WTS] Longines Hydroconquest 41mm Blue - $850

Longines Hydroconquest 41mm Blue - $850

Longines - L37424966 · $850
A Longines Hydroconquest 41mm automatic diver features a blue sunburst dial, matching blue ceramic bezel and has excellent timekeeping capabilities.

  • Condition: Excellent with light signs of wear
  • Case size: 41mm diameter
  • Bezel material: Ceramic
  • Bracelet condition: Light scuffs on the clasp
Posted at
Feb 11, 2026, 1:00 PM
Active
[WTS] 2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

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

  • Case material: black ceramic
  • Size: 43mm diameter
Posted at
Feb 8, 2026, 1:07 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

For sale is my Longines Hydroconquest 41m ceramic automatic in green. It's a stainless steel case with ceramic bezel and Swiss automatic movement (Longines Calibre L888 series) with approx. 72 hr power reserve.

  • Condition: Used
  • Case Size: 41 mm diameter
  • Case Material: Stainless steel case
  • Movement: Longines Calibre L888 series, approx. 72 hr power reserve
Posted at
Feb 6, 2026, 9:31 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