Longines HydroConquest HydroConquest 44 Quartz Stainless Steel / Blue / Bracelet

Reference L3.840.4.96.6

About this watch

The Longines HydroConquest 44 Quartz Stainless Steel / Blue / Bracelet is a stunning timepiece that seamlessly blends style, functionality, and durability. Its striking blue dial and robust design make it a perfect fit for those who appreciate diving watches without sacrificing sophistication. The round shape and polished stainless steel case exude elegance, while the rotating bezel with a 0-60 scale adds to the watch's sporty appeal. With a water resistance rating of 300 meters, this watch is built to withstand the pressure of any adventure. At its heart lies the Longines caliber L157, a reliable quartz movement known for its accuracy and reliability. The stainless steel bracelet feels sturdy yet comfortable, making it suitable for all-day wear. Whether you're diving into the deep sea or just enjoying a day at the beach, this watch is designed to perform under pressure, both literally and figuratively.
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Key Features

  • 44mm diameter stainless steel case
  • 300m water resistance rating
  • Longines Caliber L157 quartz movement
  • Stunning blue dial with mixed indexes and proprietary hands
  • Rotating bezel with 0-60 scale for diving and navigation
  • Durable sapphire crystal glass for excellent protection against impacts and scratches
  • Stainless steel bracelet with folding clasp for secure fit

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 44 Quartz Stainless Steel / Blue / Bracelet
Reference
L3.840.4.96.6
Movement
l157
Movement Features
  • Hours, Seconds, Minutes
  • Date
Case
Stainless Steel 44mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
[WTS] Longines HydroConquest (Ref. L3.782.4.96.6) $975

Longines HydroConquest (Ref. L3.782.4.96.6) $975

The Longines HydroConquest is a 43mm Swiss automatic diver’s watch featuring a sunray blue dial and 300 meter water resistance.

  • Condition: Very good pre-owned
  • Diameter: 43mm
  • Water Resistance: 300m depth rating
  • Movement: L888 caliber
Posted at
Feb 4, 2026, 11:11 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