Longines HydroConquest Hydroconquest Automatic 39

Reference L3.648.4.56.6

About this watch

The Longines Hydroconquest Automatic 39 is a luxury dive watch that exudes elegance and sophistication. Its sleek design, robust build, and black dial make it a statement piece on the wrist. The watch's rotating bezel, marked from 0 to 60, is ideal for timing dives or other activities, while its sapphire glass ensures scratch-resistance and durability. Powered by the Longines caliber L633.5 automatic movement, this watch boasts a frequency of 28,800 beats per hour and a power reserve of 38 hours. With water resistance up to 300 meters, it's built for serious use, whether diving into the ocean or splashing around in the pool. The stainless steel bracelet feels sturdy yet comfortable on the wrist, making it perfect for all-day wear. This watch is not just a timekeeper, but an investment in style, functionality, and durability.
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Key Features

  • Automatic Movement
  • Water Resistance up to 300m
  • Sapphire Glass
  • Stainless Steel Case and Bracelet
  • Rotating Bezel with 0-60 Markings

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 39
Reference
L3.648.4.56.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 39mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest GMT, Excellent Condition, Box and papers look

Longines Hydroconquest GMT, Excellent Condition, Box and papers look

Longines - L3.790.4.56.6 · $1,850
The Longines Hydroconquest GMT features a 41mm-diameter stainless steel case with screw-down back and crown, a black ceramic bezel with luminescent capsule, and a black dial on a stainless-steel bracelet.

  • Condition: Excellent Condition
  • Case diameter: 41mm
  • Bezel material: black ceramic
Posted at
Jul 3, 2025, 12:50 PM
Active
[WTS] Longines Hydroconquest GMT

Longines Hydroconquest GMT

Longines - L3.790.4.06.2 · $1,650
This Longines Hydroconquest GMT is a full kit, minus the original NATO strap, and comes on an OEM Hydroconquest bracelet with 10 full and 1 half links.

  • Condition: Pre-owned with minor wear
  • Case Condition: clean
  • Crystal Condition: clean
  • Bracelet Condition: minor desk rash
Posted at
Jul 2, 2025, 3:33 PM
Active
[WTS] Longines Hydroconquest, Black & Rose Gold, Rubber Strap

Longines Hydroconquest, Black & Rose Gold, Rubber Strap

The Longines Hydroconquest features a black rubber strap, uni-directional rotating ceramic bezel, and date display at the 3 o'clock position.

  • Condition: Gently used, minor wear and tear
  • Water Resistance Depth: 300m
  • Case Size: 43mm
  • Movement Jewels: 21
Posted at
Jun 23, 2025, 6:59 PM
Active
[Wts] Longines Hydroconquest 39mm L3.780.3.78.6 Full set Mint £1000 shipped to UK

Longines Hydroconquest 39mm L3.780.3.78.6 Full set Mint £1000 shipped to UK

Longines - L3.780.3.78.6 · $1,000
A Longines Hydroconquest 39mm watch, reference L3.780.3.78.6, features a chronometer movement (l888.4) and is in excellent timekeeping condition.

  • Condition: mint condition
  • Movement: L888.4 chronometer version
  • Warranty: almost 3 years remaining
  • Shipping: fully insured special delivery
Posted at
Jun 22, 2025, 5:59 AM
Active