Longines HydroConquest HydroConquest 43 Automatic Stainless Steel - Yellow Gold / Black / Bracelet

Reference L3.782.3.56.7

About this watch

The Longines HydroConquest 43 Automatic Stainless Steel - L3.782.3.56.7 is a statement piece that combines elegance and practicality. With its robust features, stunning design, and reliable movement, this watch proves that you don't have to sacrifice style for functionality. The black sunburst dial is like a night sky with stars, shimmering under various lights. Yellow gold accents provide a luxurious contrast, making it not just a watch but a piece of jewelry. The stainless steel and PVD gold coating enhance its durability while maintaining that captivating allure. The bracelet is crafted from stainless steel with a perfect blend of comfort and elegance, feeling substantial yet surprisingly light on the wrist. At the heart of the HydroConquest is the Longines caliber L888.5, a self-winding movement that boasts a frequency of 25,200 vibrations per hour. It features a silicon balance spring, which enhances its precision and reliability. With a power reserve of 64 hours, this movement ensures that you won't need to wind it every day, making it perfect for those who appreciate convenience.
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Key Features

  • Black sunburst dial with yellow gold accents
  • Longines caliber L888.5 self-winding movement
  • Water resistance up to 300 meters
  • Stainless steel and PVD gold coating
  • Sapphire crystal resistant to scratches
  • 43mm diameter with 11.90mm height
  • 21mm lug width for adjustable fit

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 43 Automatic Stainless Steel - Yellow Gold / Black / Bracelet
Reference
L3.782.3.56.7
Movement
l888-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer
Case
43mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest 43mm

Longines HydroConquest 43mm

A Longines HydroConquest 43mm diver watch for sale, with excellent timekeeping and minimal signs of wear.

  • Condition: Pre-owned with normal wear
  • Bracelet condition: normal wear with worn clasp
  • Case condition: scratch-free except on the back
  • Papers included: true
Posted at
Apr 27, 2026, 9:05 PM
Active
[WTS] Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New

Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New

Longines - 2026 · $4,200
The listing is for a Longines HydroConquest 42mm watch with a blue ceramic bezel, accompanied by a full kit and a 2026 card.

  • Condition: Like new
  • Material: Blue Ceramic Bezel
  • Size: 42mm
Posted at
Apr 27, 2026, 1:18 PM
Active
[WTS] Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition

Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition

This is a brand new, unworn Longines HydroConquest limited edition watch from the 2026 Commonwealth Games collection. It features a 39mm case and comes with various accessories.

  • Condition: Brand New Unworn
  • Case size: 39mm
  • Limited edition status: One of 2026
Posted at
Apr 27, 2026, 11:58 AM
Active
[WTS] Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

This Longines Hydroconquest features a 41mm ceramic case, black dial, and is sized for an approximate 7.4" wrist.

  • Condition: Pre-owned with scratches on the case and bracelet
  • Case material: ceramic
  • Bracelet size: 7.4in diameter
  • Warranty: no warranty included
Posted at
Apr 26, 2026, 7:58 PM
Active
[WTS] Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700

Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700

Two Longines watches for sale, the Conquest L3.776.4 and the HydroConquest L3.741.4.

  • Condition: Very good
  • Case size: 39 mm
  • Year purchased: 2025
  • Clasp wear: minor wear on clasp from being stored at work desk
Posted at
Apr 25, 2026, 1:54 PM
Active
[WTS] Longines HydroConquest 41 – $975

Longines HydroConquest 41 – $975

This Longines HydroConquest 41 features a 41mm case, minimal wear, and comes with its box, papers, hangtag, and warranty card.

  • Condition: Very Good Pre-owned Condition
  • Case Size: 41mm diameter
  • Bracelet Condition: hairlines throughout polished surfaces, some desk wear
Posted at
Apr 25, 2026, 10:32 AM
Active
[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