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

Reference L3.783.4.56.6

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

About this watch

The Longines HydroConquest 41 Automatic Chronograph is a standout luxury watch that perfectly blends functionality with style. This esteemed timepiece boasts a stainless steel case, ceramic bezel, and impressive features that make it suitable for both diving enthusiasts and casual wearers alike. With its robust design, automatic chronograph movement, and water resistance of up to 300 meters, the HydroConquest is designed for serious diving adventures. The watch's sleek black dial, proprietary hands, and mixed indexes ensure effortless time-telling in any lighting condition. Powered by the Longines caliber L688.2, this watch features a column wheel ensuring smooth chronograph operation and a 54-hour power reserve. The inclusion of a date function at 4 o'clock and an adjustable stainless steel bracelet further enhance its functionality and comfort. With a perfect balance between presence and wearability, the HydroConquest is a remarkable timepiece that excels in both performance and aesthetics.
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Key Features

  • Stainless Steel Case
  • Ceramic Bezel for Enhanced Scratch Resistance
  • Automatic Chronograph Movement with Column Wheel
  • Water Resistance up to 300 Meters
  • 54-Hour Power Reserve
  • Date Function at 4 o'clock Position
  • Adjustable Stainless Steel Bracelet

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Chronograph Stainless Steel / Ceramic / Black / Bracelet
Reference
L3.783.4.56.6
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 Blue 39mm - $1150

Longines Hydroconquest Blue 39mm - $1150

Longines - Hydroconquest · $1,150
A blue dial Longines Hydroconquest 39mm watch with a full kit, in excellent condition and keeping good time.

  • Condition: Great condition
  • Year purchased: 2025
  • Warranty duration: 5 years
Posted at
Mar 1, 2026, 8:14 PM
Active
View listing on r/WatchExchange
[WTS] Longines Hydroconquest 41mm Two Tone

Longines Hydroconquest 41mm Two Tone

Longines - Hydroconquest 41mm Two Tone · $999
A Longines Hydroconquest 41mm Two Tone watch with a black dial and two tone finish. It is in very good condition with some minor wear.

  • Condition: Very Good Pre Owned Condition
  • Diameter: 41mm
Posted at
Feb 27, 2026, 3:34 PM
Active
View listing on r/WatchExchange
[WTS] Longines HydroConquest GMT 41mm L3.790.4

Longines HydroConquest GMT 41mm L3.790.4

Longines - L3.790.4 · $1,799
This Longines HydroConquest GMT is a 41mm watch featuring a 6.5 inch bracelet and an aftermarket rubber strap with deployant.

  • Bracelet Length: 6.5 inches
  • Case Size: 41mm
Posted at
Feb 19, 2026, 5:35 PM
Active
View listing on r/WatchExchange
[WTS] Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines - L3.782.4 · $1,095
This Longines HydroConquest automatic watch features a black dial and 43mm case size, which provides a strong wrist presence.

  • Condition: very good
  • Case size: 43mm diameter
  • Case wear: normal wear consistent with careful use
Posted at
Feb 18, 2026, 4:40 PM
Active
View listing on r/WatchExchange
[WTS] Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines - Hydroconquest 41m · $975
A green ceramic automatic watch from Longines, part of the Hydroconquest series, featuring a Swiss movement with 72-hour power reserve.

  • Condition: Used with signs of wear
  • Case diameter: 41 mm
  • Water resistance: 300m / 30 bar
  • Movement: Longines Calibre L888 series with 72hr power reserve
Posted at
Feb 16, 2026, 4:12 PM
Active
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Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines - L3.781.4.06.9 · $1,095
This Longines HydroConquest is a steel diver's watch with an olive green matte dial and a unidirectional rotating ceramic bezel. The stainless steel case measures 41mm in diameter and has a water resistance of up to 300 meters.

  • Condition: Excellent Condition
  • Case Diameter: 41mm
  • Thickness: 11.9mm
  • Bezel Type: Unidirectional rotating Green Ceramic
Posted at
Feb 5, 2025, 2:47 AM
Active
View listing on RolexForums