Longines HydroConquest HydroConquest 43 Automatic Stainless Steel / Ceramic / Black / Bracelet

Reference L3.782.4.56.6

Longines HydroConquest 43 Automatic Stainless Steel / Ceramic / Black / Bracelet

About this watch

The Longines HydroConquest L3.782.4.56.6 is a luxury dive watch that perfectly blends form and function. Its bold black dial, complemented by a stainless steel case, exudes elegance while its 43mm diameter and rotating bezel with 0-60 scale make it suitable for both casual and formal occasions. The Longines Caliber L888.2 automatic movement boasts a power reserve of 65 hours and features hours, minutes, seconds, and a date display. With a water resistance of 300 meters and scratch-resistant sapphire crystal, this watch is designed to withstand the elements. Its versatility allows it to transition seamlessly from a day at the beach to a night out on the town, making it a statement piece for any occasion.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Longines Caliber L888.2 automatic movement
  • 43mm stainless steel case with rotating bezel
  • 300m water resistance and scratch-resistant sapphire crystal
  • Date display and accurate timekeeping
  • Comfortable stainless steel bracelet with polished links
  • Bold black dial with luminescent hands for excellent legibility

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 43 Automatic Stainless Steel / Ceramic / Black / Bracelet
Reference
L3.782.4.56.6
Movement
l888-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 43mm
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
View listing on r/WatchExchange
[WTS] New Longines HydroConquest 42mm

New Longines HydroConquest 42mm

Longines - HydroConquest 42mm · $2,050
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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[WTS] Longines HydroConquest GMT 41mm Black, Full Kit, June 2025

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

Longines - HydroConquest GMT · $1,980
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
View listing on r/WatchExchange
[WTS] Longines Hydroconquest 39mm Black MINT

Longines Hydroconquest 39mm Black MINT

Longines - Hydroconquest 39mm Black · $2,200
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
View listing on r/WatchExchange
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