Longines HydroConquest HydroConquest 43 Automatic Stainless Steel / Ceramic / Black / Bracelet

Reference L3.782.4.56.6

About this watch

The Longines HydroConquest L3.782.4.56.6 is a luxury dive watch that perfectly blends form and function. Its bold black dial, complemented by a stainless steel case, exudes elegance while its 43mm diameter and rotating bezel with 0-60 scale make it suitable for both casual and formal occasions. The Longines Caliber L888.2 automatic movement boasts a power reserve of 65 hours and features hours, minutes, seconds, and a date display. With a water resistance of 300 meters and scratch-resistant sapphire crystal, this watch is designed to withstand the elements. Its versatility allows it to transition seamlessly from a day at the beach to a night out on the town, making it a statement piece for any occasion.
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Key Features

  • Longines Caliber L888.2 automatic movement
  • 43mm stainless steel case with rotating bezel
  • 300m water resistance and scratch-resistant sapphire crystal
  • Date display and accurate timekeeping
  • Comfortable stainless steel bracelet with polished links
  • Bold black dial with luminescent hands for excellent legibility

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 43 Automatic Stainless Steel / Ceramic / Black / Bracelet
Reference
L3.782.4.56.6
Movement
l888-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 43mm
Dial Color
Black
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

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
[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 43mm Black Ceramic watch for sale.

  • Case Size: 43mm
  • Year: 2024
Posted at
Jan 30, 2026, 9:33 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
A 2024 Longines HydroConquest watch with a 43mm black ceramic case.

  • Case material: black ceramic
  • Size: 43mm diameter
  • Year: 2024
Posted at
Jan 23, 2026, 6:43 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