Longines HydroConquest Hydroconquest 41 Quartz Chronograph Stainless Steel / Black / Bracelet

Reference L3.743.4.56.6

About this watch

If you're in the market for a watch that blends elegance with high-performance functionality, the Longines Hydroconquest 41 Quartz Chronograph might just be your next obsession. This stunning timepiece, with the reference number L3.743.4.56.6, is not just a watch; it's a statement piece that reflects your taste and lifestyle. With a rich history and commitment to quality, Longines has become synonymous with luxury watches that cater to both casual wearers and professional athletes. The Hydroconquest collection is particularly noteworthy for its robust design and aquatic capabilities. Designed for divers and adventurous spirits, the Hydroconquest series features water-resistant models that don't shy away from style. The L3.743.4.56.6 is the perfect blend of sportiness and sophistication. Crafted from high-grade stainless steel, the case exudes durability while still maintaining a refined aesthetic. The sapphire glass is scratch-resistant, ensuring that your watch stays pristine even after years of use. At the heart of the Hydroconquest is the Longines caliber L440.2, a quartz chronograph designed for accuracy and reliability. With its add, split, and rally capabilities, you can easily measure elapsed time, making it a practical choice for sports enthusiasts. The small seconds hand adds an extra layer of functionality, allowing for more precise timekeeping. If you're a water sports enthusiast, you'll be pleased to know that the Hydroconquest boasts an impressive water resistance of 300 meters. This makes it suitable for professional diving, swimming, and other water activities. Wearing the Hydroconquest is an experience in itself, with its weight just right-not too heavy, yet solid enough to feel substantial.
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Key Features

  • Longines caliber L440.2 quartz chronograph movement
  • High-quality stainless steel case with rotating bezel
  • Scratch-resistant sapphire glass for 300 meters water resistance
  • Chronograph features: add, split, and rally functions
  • Stylish and versatile design suitable for formal or casual wear
  • Comfortable on the wrist for daily wear

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest 41 Quartz Chronograph Stainless Steel / Black / Bracelet
Reference
L3.743.4.56.6
Movement
l440-2
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Rattrapante
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest 42mm

Longines HydroConquest 42mm

Longines - L3.788.4.96.6 · $1,900
This listing is for a brand new Longines HydroConquest 42mm blue dial watch, featuring a ceramic bezel and quick micro adjust bracelet.

  • Condition: Brand New In Box (BNIB)
  • Diameter: 42mm
  • Material: ceramic and lacquered
Posted at
May 26, 2026, 3:35 PM
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[WTS] Longines Hydroconquest 43mm -Like New

Longines Hydroconquest 43mm -Like New

Longines - L3.782.4.56.6 · $1,180
This Longines Hydroconquest is a 43mm watch with a black dial, purchased new in April and still in fantastic condition.

  • Condition: Like New
  • Case size: 43mm
  • Lug to lug length: 53
  • Thickness: 11.90mm
Posted at
May 25, 2026, 6:20 PM
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[WTS] Longines Hydroconquest 41mm - Black Dial

Longines Hydroconquest 41mm - Black Dial

A Longines Hydroconquest 41mm Automatic watch with a black dial, stainless steel case, and ceramic bezel.

  • Condition: Good condition, minor scratches/scuffs in sapphire and minimal wear marks on bracelet and clasp
  • Case size: 41mm diameter
  • Bezel material: stainless steel and ceramic
  • Bracelet type: original bracelet (and links)
Posted at
May 24, 2026, 3:31 PM
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[WTS] Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,750

Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,750

Longines - L3.783.4 · $1,750
The Longines Hydroconquest Chronograph 41 is a high-performance Swiss diver's watch featuring a blue ceramic bezel and screw-down crown, powered by the L688.2 column-wheel chronograph movement with a 54-hour power reserve.

  • Condition: Very good with minor usage marks
  • Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
  • Case size: 41mm diameter
  • Thickness: 15.6mm
Posted at
May 24, 2026, 12:47 PM
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[WTS] Longines Hydroconquest 43mm

Longines Hydroconquest 43mm

Longines - L3.782.4.56.6 · $1,240
The watch is a Longines Hydroconquest model L3.782.4.56.6 with a black dial and a 43mm case size.

  • Condition: Brand new with minor use (about a month)
  • Case size: 43mm diameter
  • Lug to lug length: 53mm
  • Thickness: 11.90mm
Posted at
May 22, 2026, 4:14 PM
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[WTS] (brand new) Longines HydroConquest 39mm - $1700 shipped

(brand new) Longines HydroConquest 39mm - $1700 shipped

Longines - HydroConquest · $1,700
This brand new Longines HydroConquest features a 39mm stainless steel case with black dial and ceramic bezel insert, along with a date display at the 3 o'clock position.

  • Condition: Unworn
  • Case material: stainless steel
  • Bracelet material: stainless steel
  • Water resistance: 300m
Posted at
May 21, 2026, 8:02 PM
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[WTS] Longines hydroconquest 39 mm green

Longines hydroconquest 39 mm green

This Longines HydroConquest is a recent purchase from a US authorized dealer, still in its original packaging and with all papers.

  • Condition: great condition
  • Bracelet condition: has a small ding on the clasp
  • Box and paper status: all included
  • Additional strap type: aftermarket rubber
Posted at
May 21, 2026, 9:48 AM
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[WTS] Longines HydroConquest 39mm Blue – Full Set – Excellent Condition

Longines HydroConquest 39mm Blue – Full Set – Excellent Condition

This Longines HydroConquest is a 39mm watch with an automatic movement and ceramic bezel, featuring a blue dial and bezel.

  • Condition: Excellent Condition
  • Case size: 39mm diameter
Posted at
May 21, 2026, 4:05 AM
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[WTS] RARE CONFIGURATION Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Worn | Full Kit | Warranty Card 5/8/26

RARE CONFIGURATION Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Worn | Full Kit | Warranty Card 5/8/26

Longines - L3.788.4.06.6 · $2,285
This is a rare configuration Longines HydroConquest 42mm watch with a green ceramic bezel and a green lacquered dial. It features an automatic movement, 300m water resistance, and a full kit including the original box, papers, and warranty card.

  • Condition: never worn
  • Bracelet: upgraded Longines mesh style bracelet
  • Movement: Calibre L888.5, automatic, silicon balance spring, 72hr power reserve
  • Water Resistance: 300m / 30 bar
Posted at
May 20, 2026, 3:53 PM
Active