Longines HydroConquest Hydroconquest GMT 41 Stainless Steel / Black / Bracelet

Reference L3.790.4.56.6

About this watch

The Longines Hydroconquest GMT 41 is a stunning timepiece that combines style with functionality. With its black sunburst finish dial, stick and dot indexes, and proprietary hands, it's a watch that makes a statement. The round stainless steel case measures 41 mm in diameter, featuring a rotating bezel with a 0-60 scale perfect for divers and adventure seekers. The hydroconquest GMT excels in comfort, thanks to its well-crafted stainless steel bracelet offering a secure fit without compromising on comfort. The Longines caliber L844.4 automatic movement boasts a 65-hour power reserve, 21 jewels, and a silicon balance spring enhancing precision and durability. With a water resistance of 300 meters, this watch is ready for any aquatic adventure. Its legibility is exceptional, thanks to contrasting colors and luminous hands ensuring effortless time-reading even in low-light conditions.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • 41mm diameter stainless steel case
  • Longines caliber L844.4 automatic movement with 65-hour power reserve
  • Water resistance of 300 meters
  • Silicon balance spring for enhanced precision and durability
  • Adjustable 24-hour hand for tracking time in different time zones
  • Contrasting colors and luminous hands for legibility
  • Stainless steel bracelet with secure fit and brushed finish

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest GMT 41 Stainless Steel / Black / Bracelet
Reference
L3.790.4.56.6
Movement
l844-4
Movement Features
  • Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable)
  • Date
Case
41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6

Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6

Longines - L3.788.4.98.6 · $2,200
The Longines Hydroconquest Exclusive features a 42mm case with a beautiful frosted blue dial and comes in brand new condition.

  • Condition: Brand new, unworn
  • Case size: 42mm
Posted at
Apr 24, 2026, 6:24 PM
Active
[WTS] New Longines HydroConquest 42mm

New Longines HydroConquest 42mm

A new Longines HydroConquest in the 42mm size, with a mesh band and box and papers included.

  • Condition: New
  • Case Size: 42mm
  • Band Type: mesh
Posted at
Apr 23, 2026, 8:54 AM
Active
[WTS] Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,850

Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,850

Longines - L3.783.4 · $1,850
The Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch that features a 41mm case, blue ceramic bezel, and screw-down crown. It houses the calibre L688.2, a column-wheel chronograph movement with a 54-hour power reserve.

  • Condition: Very good with minor usage marks
  • Case Size: 41 x 51mm stainless steel case with a thickness of 15.6mm and a lug width of 21mm
  • Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
  • Water Resistance: 300 (30 ATM)
Posted at
Apr 22, 2026, 3:35 PM
Active
[WTS] Longines HydroConquest GMT 41mm Black, Full Kit, June 2025

Longines HydroConquest GMT 41mm Black, Full Kit, June 2025

Up for sale is my mint condition Longines HydroConquest GMT, a full kit with box, papers, tags, and over 4 years left on the factory warranty.

  • Condition: Mint condition
  • Case dimensions: 41mm diameter, 49mm lug to lug, 12.9mm thickness
  • Movement: L844.5 with 72hrs power reserve
  • Water resistance: 300m
Posted at
Apr 19, 2026, 10:47 PM
Active
[WTS] Longines Hydroconquest 39mm Black MINT

Longines Hydroconquest 39mm Black MINT

A mint condition Longines Hydroconquest 39mm in black with a super comfortable bracelet and excellent bezel action.

  • Condition: MINT
  • Bracelet type: Super comfortable bracelet
  • Clasp type: Excellent on the fly clasp
  • Bezel action: Great bezel action
Posted at
Apr 19, 2026, 9:12 AM
Active
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