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

Reference L3.783.4.56.9

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

About this watch

The Longines HydroConquest 41 Automatic Chronograph is a masterpiece of luxury watchmaking, blending functionality with elegance and precision. With its rich heritage and innovative features, this timepiece makes a statement. The round stainless steel case measures 41 mm in diameter, featuring a rotating dive bezel marked from 0-60 for tracking time underwater. The black dial boasts mixed indexes and proprietary hands for optimal readability. The Longines caliber L688.2 automatic chronograph movement boasts a frequency of 28,800 vibrations per hour and a power reserve of 54 hours, ensuring reliability and accuracy. Water resistance reaches an impressive 300 meters, suitable for diving and water sports. A scratch-resistant sapphire glass protects the dial, while a comfortable rubber strap provides a secure fit.
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Key Features

  • 41mm Stainless Steel Case
  • Rotating Dive Bezel (0-60)
  • Longines Caliber L688.2 Automatic Chronograph Movement
  • Scratch-Resistant Sapphire Glass
  • 300m Water Resistance
  • Black Dial with Mixed Indexes and Proprietary Hands

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Chronograph Stainless Steel / Ceramic / Black / Rubber
Reference
L3.783.4.56.9
Movement
l688-2
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 39mm black bezel - 2026 release

Longines Hydroconquest 39mm black bezel - 2026 release

Longines - Hydroconquest 39mm black bezel · $2,050
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
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[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - 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
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[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - 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
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[WTS] Longines Hydroconquest 39mm black bezel/dial

Longines Hydroconquest 39mm black bezel/dial

Longines - 39mm black bezel/black dial Hydroconquest · $2,200
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
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[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
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[WTS] Longines Hydroconquest 39mm L3.779.4.96.6

Longines Hydroconquest 39mm L3.779.4.96.6

Longines - L3.779.4.96.6 · $2,100
A Longines Hydroconquest 39mm with a frosted blue dial, this watch features a unique and stylish design.

  • Condition: Like new
  • Size: 39mm diameter
Posted at
May 14, 2026, 10:43 PM
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[WTS] Longines Hydroconquest 39mm

Longines Hydroconquest 39mm

Longines - HydroConquest 39mm · $2,000
A Longines Hydroconquest diver's watch in excellent condition, featuring a 2026 movement and virtually no signs of wear.

  • Condition: 9.6/10 - extremely clean example
  • Movement: 2026
  • Case condition: virtually no signs of wear
  • Box included: true
Posted at
May 14, 2026, 10:36 PM
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View listing on r/WatchExchange