Longines HydroConquest HydroConquest 47.5 Chronograph Quartz Stainless Steel / Black / Bracelet

Reference L3.843.4.56.6

About this watch

The Longines HydroConquest 47.5 Chronograph Quartz is an exceptional watch that encapsulates the essence of what a diving watch should be. With its robust design, precision movement, and versatile style, it caters to various lifestyles and preferences. The first time you lay eyes on the HydroConquest 47.5, you can’t help but be impressed by its bold presence. With a diameter of 47.5 mm, it commands attention on the wrist. The black dial pops against the stainless steel case, creating a striking contrast that’s both elegant and sporty. The watch features a chronograph function with remarkable accuracy—up to 1/100th of a second. Its quartz movement is a marvel of engineering, operating at a frequency of 32,768 Hz, ensuring unparalleled accuracy. With a water resistance of 300 meters, the HydroConquest is designed for serious diving and can withstand underwater pressures. The stainless steel construction provides a sleek look while withstanding scratches and impacts.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • 47.5mm diameter case
  • Stainless steel construction with polished finish
  • Black dial with stick and dot indexes for excellent legibility
  • Rotating bezel marked from 0-60 for diving enthusiasts
  • Quartz movement operating at 32,768 Hz frequency
  • Chronograph function with accuracy up to 1/100th of a second
  • Water resistance up to 300 meters

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 47.5 Chronograph Quartz Stainless Steel / Black / Bracelet
Reference
L3.843.4.56.6
Movement
l440-2
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Rattrapante
Case
Stainless Steel 47.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest Two Tone Green Dial $1499

Longines HydroConquest Two Tone Green Dial $1499

Longines - HydroConquest · $1,499
Longines HydroConquest Two Tone Green Dial for sale

Posted at
May 16, 2026, 11:33 AM
Active
[WTS] Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Sized, Never Worn | Full Kit | Warranty Card 5/8/26

Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Sized, Never Worn | Full Kit | Warranty Card 5/8/26

Longines - L3.788.4.06.6 · $1,999
This is the first real redesign the HydroConquest has seen in nearly a decade with thinner case and upgraded ceramic bezel with audible click.

  • Condition: Never sized, never worn
  • Movement: Calibre L888.5, automatic, silicon balance spring, 72hr power reserve
  • Water resistance: 300m / 30 bar
  • Box papers: Full double-box set with instruction manual and tags present
Posted at
May 16, 2026, 10:58 AM
Active
[WTS] Longines Hydroconquest 41mm Black dial

Longines Hydroconquest 41mm Black dial

Longines - L3.781.4.56 · $1,100
A Longines Hydroconquest 41mm with a black dial is being sold. The watch features an original box and bracelet, as well as two additional straps.

  • Condition: Very good condition, a few scuffs on the sapphire but no scratches
  • Case size: 41mm
  • Bracelets: 2
  • Straps: 2
Posted at
May 15, 2026, 2:06 PM
Active
[WTS] Longines Hydroconquest 39mm L3.779.4.96.6

Longines Hydroconquest 39mm L3.779.4.96.6

Longines - L3.779.4.96.6 · $2,100
A Longines Hydroconquest 39mm with a frosted blue dial, this watch features a unique and stylish design.

  • Condition: Like new
  • Size: 39mm diameter
Posted at
May 14, 2026, 10:43 PM
Active
[WTS] Longines Hydroconquest 39mm

Longines Hydroconquest 39mm

A Longines Hydroconquest diver's watch in excellent condition, featuring a 2026 movement and virtually no signs of wear.

  • Condition: 9.6/10 - extremely clean example
  • Movement: 2026
  • Case condition: virtually no signs of wear
  • Box included: true
Posted at
May 14, 2026, 10:36 PM
Active
[WTS] Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint

Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint

Longines - L3.779.4.09.9 · $2,950
A limited edition Longines Hydroconquest, purchased just a week ago and still under warranty.

  • Condition: Mint
  • Case Size: 39mm
  • Limited Edition Quantity: 2026 pieces
  • Warranty Length: five years
Posted at
May 12, 2026, 4:37 PM
Active
[WTS] Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750

Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750

This Longines HydroConquest is an excellent daily-wear diver with great proportions and comfortable sizing, featuring a black dial and ceramic bezel. The watch is running well and keeping great time.

  • Condition: Excellent daily-wear, shows wear from use on the bracelet
  • Case Size: 39mm diameter
  • Bracelet Type: black ceramic bezel + bracelet + WOE NATO
Posted at
May 12, 2026, 4:18 PM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 🚢

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 🚢

A quartz-powered diver's watch from Longines, featuring a black dial and two-tone yellow gold PVD finish on the 41mm case.

  • Condition: Good (light scratches)
  • Case size: 41mm
  • Material: two tone yellow gold PVD
  • Movement: quartz
Posted at
May 10, 2026, 5:48 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