Longines HydroConquest Hydroconquest Quartz 39 Two Tone Black

Reference L3.640.3.56.7

About this watch

The Longines Hydroconquest Quartz 39 Two Tone Black is a stunning luxury watch that seamlessly blends style with functionality. Its rugged features and elegant aesthetics make it perfect for diving enthusiasts or anyone who appreciates fine craftsmanship. The combination of stainless steel and PVD gold creates an eye-catching contrast, while the black dial adorned with stick and dot indexes provides excellent readability. At the heart of this watch is the reliable Longines Caliber L263 quartz movement, offering a remarkable power reserve of approximately 26,280 seconds and featuring 7 jewels for durability and longevity. The water resistance of 300 meters makes it an ideal choice for divers or those who enjoy water sports, while the rotating bezel allows for precise timing underwater. Weighing in at a comfortable 39 mm, this watch feels just right on the wrist, striking a perfect balance between presence and wearability.
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Key Features

  • Stainless Steel Case with PVD Gold Coating
  • Quartz Movement (Longines Caliber L263)
  • 300m Water Resistance
  • Rotating Dive Bezel (0-60)
  • Scratch-resistant Sapphire Crystal
  • Black Dial with Stick and Dot Indexes
  • Date Function

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Quartz 39 Two Tone Black
Reference
L3.640.3.56.7
Movement
l263
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 39mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest Grey L3.780.3.78.6 - $1199

Longines HydroConquest Grey L3.780.3.78.6 - $1199

Longines - L3.780.3.78.6 · $1,199
This Longines HydroConquest is a gray automatic dive watch featuring a 39mm case size, 48mm lug to lug length, and L888 movement.

  • Condition: Used
  • Case size: 39mm diameter
  • Lug to lug length: 48mm
Posted at
Jan 13, 2026, 5:36 AM
Active
[WTS] Longines Hydroconquest Two Tone Ceramic Bezel Full Kit Mint on OEM Rubber & 2 Bespoke Straps

Longines Hydroconquest Two Tone Ceramic Bezel Full Kit Mint on OEM Rubber & 2 Bespoke Straps

Longines - L3.782.3.98.9 · $1,099
A two-tone Longines Hydroconquest with a sunburst blue dial, featuring a 41mm case and various strap options.

  • Condition: Mint
  • Case Size: 41mm
  • Dial Color: sunburst blue
  • Straps: 2 additional bespoke straps, 1 grey alligator leather, 1 blue babele calf leather
Posted at
Jan 2, 2026, 2:30 PM
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