Longines HydroConquest HydroConquest 43 Automatic Stainless Steel - Yellow Gold / Black / Rubber

Reference L3.782.3.56.9

Longines HydroConquest 43 Automatic Stainless Steel - Yellow Gold / Black / Rubber

About this watch

The Longines HydroConquest L3.782.3.56.9 is a luxurious dive watch that seamlessly blends style and functionality. Its stunning sunburst finish, black dial with yellow gold accents, and 43 mm round case made from stainless steel coated with PVD gold exude elegance and sophistication. The ceramic bezel rotates smoothly, allowing for easy tracking of dive times, while the sapphire glass is virtually scratch-proof. At its heart lies the Longines caliber L888.5, a self-winding movement certified by the Swiss Official Chronometer Testing Institute (COSC) for precision and reliability. With 64 hours of power reserve and a water resistance of 300 meters, this watch is ready for any aquatic adventure. The date function is located at 3 o'clock, making it easy to stay on top of your schedule. A high-quality rubber strap provides exceptional comfort and fits snugly on the wrist. The HydroConquest strikes a perfect balance between lightness and substantiality, making it a luxury piece that's both stylish and durable.
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Key Features

  • 43 mm round stainless steel case
  • Ceramic bezel with rotating dive scale
  • Sapphire crystal glass for scratch resistance
  • Chronometer-certified Longines caliber L888.5 movement
  • 64 hours power reserve
  • 300 meters water resistance
  • Date function at 3 o'clock

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 43 Automatic Stainless Steel - Yellow Gold / Black / Rubber
Reference
L3.782.3.56.9
Movement
l888-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer
Case
43mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest 39mm Black Dial – 2026 Model, Worn Once. $1,995

Longines HydroConquest 39mm Black Dial – 2026 Model, Worn Once. $1,995

Longines - HydroConquest 2026 Model · $1,995
A Longines HydroConquest with a black dial and steel bracelet for sale. It's the latest iteration from 2026, purchased recently but only worn once to a wedding.

  • Condition: Near mint, worn once
  • Case size: 39mm
  • Movement: Automatic
Posted at
May 4, 2026, 12:18 PM
Active
View listing on r/WatchExchange
[WTS] New Longines HydroConquest 42mm Frosted Blue Dial

New Longines HydroConquest 42mm Frosted Blue Dial

Longines - HydroConquest 42mm · $2,100
A brand new Longines HydroConquest with a frosted blue dial in 42mm size.

  • Condition: new
  • Case size: 42mm
  • Diameter: 42mm
Posted at
May 3, 2026, 1:20 PM
Active
View listing on r/WatchExchange
[WTS] Longines HydroConquest GMT Blue Ref: L3.790.4.96.6 (2026). New/Complete. $1,999

Longines HydroConquest GMT Blue Ref: L3.790.4.96.6 (2026). New/Complete. $1,999

Longines - L3.790.4.96.6 (2026) · $1,999
The Longines HydroConquest GMT Blue is a true GMT diver with a sunray blue dial, blue ceramic bezel, and Calibre L844.5 automatic movement.

  • Condition: Brand New
  • Case diameter: 41mm
  • Water resistance: 300m
  • Movement type: Calibre L844.5 automatic
Posted at
May 1, 2026, 8:25 PM
Active
View listing on r/WatchExchange
[WTS] New Longines Hydroconquest 42mm Frosted Blue Dial

New Longines Hydroconquest 42mm Frosted Blue Dial

Longines - Hydroconquest 42mm · $2,200
A brand new Longines Hydroconquest 42mm with a frosted blue dial, sold exclusively at Corporate boutiques. The watch comes with all links, papers, and box.

  • Condition: Brand new
  • Diameter: 42mm
Posted at
May 1, 2026, 10:36 AM
Active
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[WTS] 2026 Longines HydroConquest L37884906 42 mm Black Dial Blue Bezel Full Set $1,900

2026 Longines HydroConquest L37884906 42 mm Black Dial Blue Bezel Full Set $1,900

Longines - L37884906 · $1,900
The Longines HydroConquest L37884906 features a black dial and blue ceramic bezel, with an automatic movement providing reliable performance. The watch has a robust build, unidirectional dive bezel, and strong water resistance, making it a capable tool watch while maintaining a refined aesthetic.

  • Condition: Excellent (pre-owned, minimal wear)
  • Year: 2026
  • Case size: 42mm diameter
  • Case material: Stainless steel
Posted at
Apr 30, 2026, 10:26 PM
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[WTS] Longines HydroConquest Green Dial Two Tone $1350 41mm

Longines HydroConquest Green Dial Two Tone $1350 41mm

Longines - HydroConquest · $1,350
This Longines HydroConquest features a green dial and two-tone design.

Posted at
Apr 28, 2026, 9:41 AM
Active
View listing on r/WatchExchange
[WTS] Longines HydroConquest 43mm

Longines HydroConquest 43mm

Longines - HydroConquest 43mm · $800
A Longines HydroConquest 43mm diver watch for sale, with excellent timekeeping and minimal signs of wear.

  • Condition: Pre-owned with normal wear
  • Bracelet condition: normal wear with worn clasp
  • Case condition: scratch-free except on the back
  • Papers included: true
Posted at
Apr 27, 2026, 9:05 PM
Active
View listing on r/WatchExchange
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
View listing on RolexForums