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.
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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 Black dial 41mm $1499

Longines HydroConquest Black dial 41mm $1499

Longines - L3.783.4.56.6 · $1,499
This Longines HydroConquest features a black dial and is powered by an automatic movement, housed in a stainless steel case with sapphire crystal and a stainless steel bracelet.

  • Condition: Full working order
  • Case diameter: 41mm
  • Crystal material: Sapphire
Posted at
May 9, 2025, 3:09 AM
Active
[WTS] Longines Hydroconquest 41mm w/ Box

Longines Hydroconquest 41mm w/ Box

A Longines Hydroconquest watch in 41mm case size, excluding crown guards.

  • Bracelet markings: noticeable
  • Wrist size: 7 inches
Posted at
May 8, 2025, 5:46 PM
Active
[WTS] Longines HydroConquest GMT 43mm Green – Full Kit - Excellent Condition

Longines HydroConquest GMT 43mm Green – Full Kit - Excellent Condition

Longines - L3.890.4.06.6 · $2,200
The Longines HydroConquest GMT is a 43mm automatic diver-watch with a ceramic bezel, 300m water resistance, and a green sunburst dial.

  • Condition: Excellent
  • Case Size: 43mm diameter
  • Movement: L844.5 (72hr power reserve, COSC certified)
  • Water Resistance: 300m depth rating
Posted at
May 4, 2025, 6:59 PM
Active
[WTS] Longines HydroConquest Blue - L3.780.4.96.6

Longines HydroConquest Blue - L3.780.4.96.6

Longines - L3.780.4.96.6 · $1,000
A Longines HydroConquest Blue watch with a retail price of $1850 is being sold for $1000.

Posted at
May 3, 2025, 4:30 PM
Active
[WTS]  Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit

Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit

Longines - L3.780.4.56.6 · $1,150
The Longines HydroConquest 39 mm Black is a stainless steel automatic watch with a black sunray dial, applied indices, and date at 3 o'clock. It features a matte black ceramic bezel, sapphire crystal with AR coating, and a 300m water resistance.

  • Condition: Very good, with light desk-wear and a few small hairline scratches
  • Case Size: 39 mm diameter
  • Water Resistance: 300 m depth rating
  • Movement: Longines L888 automatic, up to 72 hr power reserve
Posted at
May 3, 2025, 1:07 PM
Active
[WTS][CA-USA][H] Longines Hydroconquest 41mm Blue | Seiko Prospex “62MAS” SPB423 US Special Edition | Hamilton Murph 42mm | Seiko Speedtimer Panda SSC813 | Orient Dive 43mm  [W] $800 | $700 | $625 | $400 | $150 PayPal F&F, venmo, zelle, local cash

[CA-USA][H] Longines Hydroconquest 41mm Blue | Seiko Prospex “62MAS” SPB423 US Special Edition | Hamilton Murph 42mm | Seiko Speedtimer Panda SSC813 | Orient Dive 43mm [W] $800 | $700 | $625 | $400 | $150 PayPal F&F, venmo, zelle, local cash

Legendary Hydroconquest auto blue with gray market warranty, purchased last month and comes full kit with stock bracelet.

  • Gray market warranty: yes
  • Purchase date: last month
  • Warranty status: never been worn outside
Posted at
May 2, 2025, 9:56 PM
Active
[WTS] Longines Hydroconquest 41mm w/ Box *Price Drop*

Longines Hydroconquest 41mm w/ Box *Price Drop*

A Longines Hydroconquest watch with a 41mm case size, excluding the crown guards, and a 7 inch wrist bracelet. It comes in its original box.

  • Bracelet Size: 7 inch
  • Case Diameter: 41mm
Posted at
Apr 28, 2025, 4:52 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