Longines HydroConquest HydroConquest 41 Automatic Chronograph Stainless Steel / Ceramic / Blue / Rubber

Reference L3.783.4.96.9

About this watch

The Longines HydroConquest L3.783.4.96.9 is a stunning example of what a modern luxury watch should be. With its robust design, impressive movement, and practical features, it truly stands out in the crowded watch market. The blend of stainless steel and ceramic gives it a modern yet timeless feel, appealing to a wide range of personal styles. The case of the HydroConquest is a perfect blend of durability and style, crafted from high-quality stainless steel with a 41mm diameter. The blue sunburst dial adds a contemporary twist, while the proprietary hands are designed for legibility. The rotating bezel serves a practical purpose for divers, tracking elapsed time underwater with a 0-60 scale. The rubber strap enhances comfort and flexibility, ensuring the watch remains secure on your wrist. At the core of the HydroConquest is the Longines caliber L688.2, an automatic chronograph movement that boasts impressive features, including 27 jewels, a 54-hour power reserve, and a frequency of 28,800 vibrations per hour. The inclusion of a date function adds to the watch's overall balanced aesthetic, making it easy to read and use. With a water resistance of up to 300 meters, this watch is designed for diving enthusiasts who need a reliable timepiece that can withstand underwater exploration.
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Key Features

  • 41mm stainless steel case
  • Blue sunburst dial with proprietary hands
  • Rotating ceramic bezel with 0-60 scale
  • Rubber strap for comfort and flexibility
  • Longines caliber L688.2 automatic chronograph movement
  • 27 jewels, 54-hour power reserve, and 28,800 vibrations per hour
  • Date function at the 6 o'clock mark

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Chronograph Stainless Steel / Ceramic / Blue / Rubber
Reference
L3.783.4.96.9
Movement
l688-2
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
Case
Stainless Steel 41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 42mm 2026

Longines Hydroconquest 42mm 2026

For sale is a 2026 Longines Hydroconquest 42mm Black on Black watch, which comes as a full set with dated warranty card. It's in excellent condition with minimal signs of wear.

  • Condition: Like New, In Box (LNIB)
  • Case Size: 42mm
  • Color: Black on Black
Posted at
May 19, 2026, 7:48 PM
Active
[WTS] Longines Hydroconquest 39mm black bezel - 2026 release

Longines Hydroconquest 39mm black bezel - 2026 release

A 39mm black bezel Longines Hydroconquest with a black dial, sold in full kit and unregistered for warranty purposes.

  • Condition: Like-new
  • Case diameter: 39mm
  • Condition notes: No scratches anywhere on the case, crystal or bracelet
Posted at
May 18, 2026, 4:29 PM
Active
[WTS] Longines HydroConquest GMT 41mm – $1800

Longines HydroConquest GMT 41mm – $1800

This Longines HydroConquest GMT features a 41mm case and is in great condition, despite some minor imperfections on the bezel and bracelet.

  • Condition: Pre-owned with minor wear
  • Case Size: 41mm
  • Bezel Condition: Clean
Posted at
May 18, 2026, 9:22 AM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

A Longines Hydroconquest quartz two-tone diver watch, featuring a black dial and 41mm case size.

  • Condition: Pre-owned with light scratches
  • Case size: 41mm
  • Material: two tone
Posted at
May 17, 2026, 9:13 AM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

This Longines Hydroconquest is a fun and capable diver that comes in the 41mm version, featuring a black dial and quartz movement.

  • Condition: pre-owned with light scratches
  • Case Size: 41mm
  • Movement Type: quartz
Posted at
May 16, 2026, 7:05 PM
Active
[WTS] Longines Hydroconquest 39mm black bezel/dial

Longines Hydroconquest 39mm black bezel/dial

This Longines Hydroconquest 39mm features a black bezel and dial, is in excellent condition, and comes with its full kit including boxes, hangtags, warranty card, and owner's manual.

  • Condition: Like-new
  • Case size: 39mm diameter
  • Box status: full-kit
  • Warranty remaining: five years
Posted at
May 16, 2026, 5:17 PM
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[WTS] Longines HydroConquest Two Tone Green Dial $1499

Longines HydroConquest Two Tone Green Dial $1499

Longines - HydroConquest · $1,499
Longines HydroConquest Two Tone Green Dial for sale

Posted at
May 16, 2026, 11:33 AM
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[WTS] Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Sized, Never Worn | Full Kit | Warranty Card 5/8/26

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

Longines - L3.788.4.06.6 · $1,999
This is the first real redesign the HydroConquest has seen in nearly a decade with thinner case and upgraded ceramic bezel with audible click.

  • Condition: Never sized, never worn
  • Movement: Calibre L888.5, automatic, silicon balance spring, 72hr power reserve
  • Water resistance: 300m / 30 bar
  • Box papers: Full double-box set with instruction manual and tags present
Posted at
May 16, 2026, 10:58 AM
Active
[WTS] Longines Hydroconquest 41mm Black dial

Longines Hydroconquest 41mm Black dial

Longines - L3.781.4.56 · $1,100
A Longines Hydroconquest 41mm with a black dial is being sold. The watch features an original box and bracelet, as well as two additional straps.

  • Condition: Very good condition, a few scuffs on the sapphire but no scratches
  • Case size: 41mm
  • Bracelets: 2
  • Straps: 2
Posted at
May 15, 2026, 2:06 PM
Active