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.

Buy Now on Jomashop

This is an affiliate link

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

Longines HydroConquest Automatic watch, 41.00 mm, stainless steel and ceramic bezel, L3.781.3.96.7– Ref L3.781.3.96.7 – Full Set – Feb 2026

Longines - L3.781.3.96.7

Bezel material: stainless steel and ceramic
Case size: 41.00 mm

Posted at

Mar 14, 2026, 7:18 PM

Active

View listing on r/WatchExchange

Longines HydroConquest GMT 41

Longines - L3.790.4 · $1,875

A Longines HydroConquest GMT 41, featuring a GMT function and 41mm case size.

Condition: Pre-owned with minor cosmetic flaws
Case size: 41mm diameter
Water resistance: not specified

Posted at

Mar 11, 2026, 3:01 PM

Active

View listing on r/WatchExchange

Longines HydroConquest 41mm - $1200 Shipped

Longines - HydroConquest 41mm · $1,200

Up for sale is my green Longines Hydroconquest 41, which I'm looking to replace with a Tudor Royal Date Day. The watch has been well taken care of and comes in excellent condition.

Condition: great condition with a small scratch on the AR coating
Bracelet condition: touched up

Posted at

Mar 10, 2026, 10:24 PM

Active

View listing on r/WatchExchange

2025 Longines HydroConquest 39 - $950

Longines - L3-780-4-56-6 · $950

This is a 2025 Longines HydroConquest 39, a great everyday diver presented as a complete set. It has honest signs of wear and comes with a watch maxx kit, box, papers, and full links.

Condition: Good overall condition with visible signs of wear
Year: 2025
Included Accessories: Watch maxx kit,Box,Papers,Full links
Shipping Options: Buyer add $30 FedEx 2-Day Air or provide own label

Posted at

Mar 7, 2026, 5:21 PM

Active

View listing on r/WatchExchange

- Longines Hydroconquest 39mm - Black Dial

Posted at

Mar 3, 2026, 3:05 PM

Active

View listing on r/WatchExchange