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

Reference L3.782.4.76.6

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

About this watch

The Longines HydroConquest 43 Automatic watch, model reference L3.782.4.76.6, is a testament to Swiss craftsmanship and luxury appeal. This exceptional timepiece combines function and flair, making it perfect for diving enthusiasts and style aficionados alike. With its striking grey ceramic and stainless steel finish, the HydroConquest boasts a modern yet understated design that commands attention without being overly bulky. The round shape and mixed indexes add an element of sophistication, making it a versatile piece suitable for both casual and formal occasions. The dial is where the magic happens, with its rich grey color offering excellent readability thanks to proprietary hands and mixed indexes. The luminous coating ensures that you can easily tell the time even in low-light conditions. Powered by the Longines caliber L888.2, an automatic movement promises reliability and accuracy, with a power reserve of 65 hours. This movement keeps time accurately and features a date function, adding to its practicality. One of the standout features is its impressive 300 meters of water resistance, making it an excellent companion for divers and water sports enthusiasts. The rotating bezel allows for easy tracking of elapsed time, and the sapphire glass protects the dial from scratches while ensuring crystal-clear visibility. With a lug width of 21mm, the bracelet is robust yet feels light on the wrist, providing a luxurious feel while ensuring a secure fit. Adjustable to find that perfect fit, this watch delivers a comfortable experience for any adventure.

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Key Features

Automatic Movement with Power Reserve of 65 Hours
300m Water Resistance with Rotating Bezel
High-Quality Stainless Steel and Ceramic Construction
Sapphire Glass with Crystal-Clear Visibility
Adjustable Bracelet with Robust yet Light Design

Specifications

Brand

Longines

Family

HydroConquest

Model

HydroConquest 43 Automatic Stainless Steel / Ceramic / Grey / Bracelet

Reference

L3.782.4.76.6

Movement

l888-2

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 43mm

Dial Color

Grey

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 43mm (updated pictures)

Longines - L3.782.4.56.6 · $1,260

This Longines Hydroconquest 43mm features a black dial on a stainless steel bracelet and has been worn only 4-6 times since its purchase. It comes with a full set, including the box, tags, warranty cards, and is still under Jomashop's 2-year warranty.

Condition: Fantastic, worn 4-6 times
Case size: 43mm
Lug to lug: 53mm
Thickness: 11.90mm

Posted at

May 9, 2026, 4:10 PM

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(brand new) Longines HydroConquest 39mm - $1800 shipped

Longines - HydroConquest · $1,800

This brand new Longines HydroConquest features a black dial, stainless steel case and bracelet, sapphire crystal with anti-reflective coating, and is powered by the L888.4 automatic movement.

Condition: Unworn
Case material: stainless steel
Bracelet material: stainless steel
Water resistance: 300m

Posted at

May 9, 2026, 1:11 PM

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2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set

Longines - L3.779.4.56.6 · $1,900

The newly redesigned Longines HydroConquest in the highly sought-after 39mm size, featuring a refined dial and upgraded bracelet.

Condition: Excellent Used Condition
Size: 39mm diameter
Thickness: ~11.9mm
Lug-to-lug length: 47mm

Posted at

May 7, 2026, 8:43 PM

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Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.

Longines - L3.782.4.56.6 · $1,350

A Longines Hydroconquest 43mm watch on a black dial with a stainless steel bracelet, now on an Ali Rubber strap.

Condition: Mint condition, worn approximately 5 times
Case size: 43mm diameter
Lug to lug: 53mm
Thickness: 11.90mm

Posted at

May 7, 2026, 4:43 AM

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

Longines - L3.740.3.56.7 · $600

This Longines Hydroconquest is a 41mm two-tone diver's watch with a quartz movement.

Condition: Used with light scratches
Size: 41mm diameter

Posted at

May 6, 2026, 9:43 PM

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2025 Longines Hydroconquest 41mm Ref: L37814056

Longines - L37814056 · $1,300

This listing is for a 2025 Longines Hydroconquest 41mm watch, featuring an automatic self-winding caliber L888.5, unidirectional green ceramic bezel, and 300M water resistance.

Condition: Like new with some minor marks on the bracelet and buckle
Case size: 41mm
Bracelet type: Stainless steel
Water resistance: 300m depth rating

Posted at

May 6, 2026, 8:37 PM

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Longines Hydroconquest 42 mm “Green” 2026

Longines - Hydroconquest 42mm · $1,800

Up for sale is one of my new Longines Hydroconquest 42mm watches, I purchased several but find myself gravitating towards other models.

Condition: New
Case size: 42mm diameter

Posted at

May 6, 2026, 7:28 PM

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(Longines) (2026 Hydroconquest 39mm Commonwealth) Brand New and Unworn

Longines - L3.779.4.09.9 · $2,650

This is a Limited Edition Hydroconquest Commonwealth Games watch from Longines, purchased brand new from an authorized dealer and still under warranty.

Case diameter: 39mm
Box condition: great condition with exception of price sticker on outer box

Posted at

May 6, 2026, 5:30 PM

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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

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