Longines HydroConquest Hydroconquest 43 Automatic Ceramic / Black / Rubber

Reference L3.784.4.56.9

About this watch

The Longines HydroConquest L3.784.4.56.9 is a stunning luxury watch that embodies the spirit of adventure and sophistication. With its robust design, reliable movement, and versatile aesthetics, this 43mm automatic ceramic timepiece can transition seamlessly from underwater exploration to formal occasions. The black ceramic case features a sleek, modern look, while the mixed indexes and stick hands ensure easy readability in low-light conditions. The rotating bezel with a 0-60 scale allows for precise timing of your underwater adventures, making it an essential feature for divers. With a water resistance of up to 300 meters and a durable rubber strap, this watch is perfect for both seasoned divers and casual wearers alike. The Longines caliber L888.3 movement boasts reliability and performance, with a power reserve of 65 hours and a frequency of 25,200 vibrations per hour. This watch is not just a statement piece; it's a lifestyle choice that combines luxury with functionality.
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Key Features

  • 43mm black ceramic case
  • Longines caliber L888.3 automatic movement
  • Sapphire glass
  • 300m water resistance
  • Durable rubber strap
  • Rotating 0-60 bezel
  • Mixed indexes and stick hands

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest 43 Automatic Ceramic / Black / Rubber
Reference
L3.784.4.56.9
Movement
l888-3
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
43mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
[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 black ceramic case and 43mm diameter.

  • Case material: black ceramic
  • Case size: 43mm diameter
  • Year of manufacture: 2024
Posted at
Jan 16, 2026, 3:58 PM
Active
[WTS] Longines HydroConquest Grey L3.780.3.78.6 - $1199

Longines HydroConquest Grey L3.780.3.78.6 - $1199

Longines - L3.780.3.78.6 · $1,199
This Longines HydroConquest is a gray automatic dive watch featuring a 39mm case size, 48mm lug to lug length, and L888 movement.

  • Condition: Used
  • Case size: 39mm diameter
  • Lug to lug length: 48mm
Posted at
Jan 13, 2026, 5:36 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