Longines HydroConquest Hydroconquest Automatic 41

Reference L3.649.4.96.6

About this watch

The Longines Hydroconquest Automatic 41 is a stunning timepiece that embodies the brand's commitment to craftsmanship and style, boasting a vibrant blue dial and polished stainless-steel case. This luxury dive watch combines functionality with sophistication, offering a perfect balance of readability and style. The automatic movement, based on the reliable ETA 2824-2, has 25 jewels and offers a power reserve of 38 hours, ensuring precision and accuracy. With its impressive water resistance of 300 meters, this watch is built to withstand the pressures of underwater adventures, making it a worthy addition to any collection.
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Key Features

  • Longines caliber L633.5 automatic movement
  • Polished stainless-steel case with rotating bezel
  • Sapphire glass with blue dial and mixed indexes
  • 300-meter water resistance
  • 41mm diameter with 21mm lug width
  • Stainless steel construction with tactile rotating bezel

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 41
Reference
L3.649.4.96.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest with Box+Papers

Longines Hydroconquest with Box+Papers

A gently used Longines Hydroconquest in excellent condition, complete with box, papers, and original accessories.

  • Condition: Near perfect with minor scratches on the back of the lugs
  • Box And Papers: Included
  • Bracelet Links: Extra links after sizing
  • Warranty Card: Included
Posted at
Mar 22, 2026, 5:10 PM
Active
[WTS] OEM Longines HydroConquest GMT 41mm Black Rubber Strap (21mm) w/ OEM Deployant Clasp – Excellent

OEM Longines HydroConquest GMT 41mm Black Rubber Strap (21mm) w/ OEM Deployant Clasp – Excellent

A Longines HydroConquest GMT watch with a 41mm black rubber strap and deployant clasp, featuring a comfortable on-the-fly micro-adjust mechanism. The watch has been worn sparingly and shows minimal signs of wear.

  • Condition: Lightly used
  • Lug width: 21mm
  • Clasp type: deployant
Posted at
Mar 22, 2026, 3:26 PM
Active
[WTS] Longines Hydroconquest GMT - Sunray Brown - 41mm- Full Kit - Excellent Condition

Longines Hydroconquest GMT - Sunray Brown - 41mm- Full Kit - Excellent Condition

A Longines Hydroconquest GMT 41mm with a sunray brown dial and ceramic bezel insert, featuring an updated bezel and quick-adjust bracelet. It has a true GMT movement that keeps excellent time.

  • Condition: Excellent
  • Case size: 41mm
  • Lug-to-lug: 49.2mm
  • Thickness: 12.8mm
Posted at
Mar 21, 2026, 12:28 PM
Active
[WTS] Longines HydroConquest 41mm Two Tone $1750

Longines HydroConquest 41mm Two Tone $1750

Longines - HydroConquest · $1,750
Longines HydroConquest in a two-tone version, sold as-is.

  • 41mm diameter: case size
Posted at
Mar 18, 2026, 12:52 PM
Active
[WTS] Longines Hydroconquest Two-tone 41mm

Longines Hydroconquest Two-tone 41mm

This Longines Hydroconquest Two-Tone is a 41mm watch that comes with all its original components, including a blank card.

  • Condition: Absolutely beautiful condition!
  • Case size: 41mm
Posted at
Mar 16, 2026, 1:57 PM
Active
[WTS] Longines Hydroconquest GMT 41mm

Longines Hydroconquest GMT 41mm

The Longines Hydroconquest GMT is a blue-dialed watch featuring a GMT complication, housed in a 41mm case. It comes with a complete full set and eBay verification.

  • Condition: Pre-owned with minor wear
  • Case size: 41mm
  • Bracelet condition: Minor wear
Posted at
Mar 15, 2026, 5:06 PM
Active
[WTS] Longines HydroConquest GMT 41

Longines HydroConquest GMT 41

Longines - L3.790.4 · $1,875
A Longines HydroConquest GMT 41, featuring a GMT function and 41mm case size.

  • Condition: Pre-owned with minor cosmetic flaws
  • Case size: 41mm diameter
  • Water resistance: not specified
Posted at
Mar 11, 2026, 3:01 PM
Active
[WTS] Longines HydroConquest 41mm - $1200 Shipped

Longines HydroConquest 41mm - $1200 Shipped

Up for sale is my green Longines Hydroconquest 41, which I'm looking to replace with a Tudor Royal Date Day. The watch has been well taken care of and comes in excellent condition.

  • Condition: great condition with a small scratch on the AR coating
  • Bracelet condition: touched up
Posted at
Mar 10, 2026, 10:24 PM
Active