Longines HydroConquest Hydroconquest Chronograph

Reference L3.644.4.96.2

About this watch

The Longines Hydroconquest Chronograph (Model L3.644.4.96.2) is a masterful blend of style, functionality, and durability. This luxury watch boasts a striking blue color with polished stainless steel finish, featuring a gem-set bezel for added luxury. The 41mm round case is robust enough for diving yet elegant enough for daily wear. Its scratch-resistant sapphire glass ensures a pristine look for years to come. The ETA caliber 7750 movement provides accuracy and durability, boasting a frequency of 28,800 vibrations per hour and a power reserve of 42 hours. With its chronograph function and date/day display, this watch is perfect for divers and those who appreciate fine craftsmanship. Its water resistance of 300 meters makes it suitable for snorkeling, swimming, or even a rain shower. The stainless steel bracelet is sturdy yet comfortable, featuring a secure clasp that ensures it stays on your wrist. Whether you're at the office, out on the town, or diving into the ocean, this watch fits seamlessly into any scenario.
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Key Features

  • ETA caliber 7750 automatic movement
  • Scratch-resistant sapphire glass
  • 300m water resistance

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Chronograph
Reference
L3.644.4.96.2
Movement
7750
Movement Features
  • Hours, Minutes, Small Seconds
  • Date, Day
  • Chronograph
Case
Stainless Steel 41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
[WTS] Longines Hydroconquest L3.742.4 Automatic 41mm Diver $700 OBO

Longines Hydroconquest L3.742.4 Automatic 41mm Diver $700 OBO

Longines - L3.742.4 · $700
This Longines Hydroconquest L3.742.4 is a 41mm automatic diver's watch that keeps time well and runs smoothly.

  • Condition: Good overall, with minor scratches on the bezel and case
  • Case Size: 41mm diameter
  • Movement Type: automatic
Posted at
Dec 24, 2025, 11:07 AM
Active
[WTS] Longines Hydroconquest Two Tone Ceramic Bezel Full Kit Mint on OEM Rubber

Longines Hydroconquest Two Tone Ceramic Bezel Full Kit Mint on OEM Rubber

Longines - L3.782.3.98.9 · $1,099
This is a two-tone Longines Hydroconquest with a radiant sunburst blue dial, featuring a 41mm version of the watch that's more wearable than its 43mm counterpart.

  • Condition: Mint on OEM rubber strap
  • Model size: 41mm diameter
  • Case material: two tone
  • Bezel type: ceramic
Posted at
Dec 22, 2025, 10:59 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