Longines HydroConquest Hydroconquest Automatic 41

Reference L3.649.4.16.6

About this watch

The Longines HydroConquest Automatic 41 is a stunning dive watch that seamlessly blends ruggedness and sophistication. With its robust stainless steel construction, scratch-resistant sapphire crystal glass, and automatic movement featuring a reliable date function, this timepiece is designed for both underwater adventures and formal occasions. The 41mm diameter case, mixed indexes on the white dial, and rotating bezel with a 0-60 scale make it visually striking and easy to read. Whether you're snorkeling in the Caribbean or dancing the night away, the HydroConquest is a true statement piece that embodies adventure and sophistication. Its elegant design, stainless steel bracelet, and reliable clasp ensure comfort and security on the wrist. With a water resistance of 300 meters, this watch is perfect for thrill-seekers who appreciate the ocean's beauty. The Longines caliber L633.5 movement, built on a solid foundation of horological excellence, boasts accuracy and precision. This timepiece is more than just a watch; it's an investment in a legacy of horological excellence.
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Key Features

  • 41mm diameter stainless steel case
  • Scratch-resistant sapphire crystal glass
  • Automatic movement with date function
  • Rotating bezel with 0-60 scale for diving
  • Water resistance up to 300 meters
  • Elegant white dial with mixed indexes
  • Stainless steel bracelet and reliable clasp

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 41
Reference
L3.649.4.16.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
White
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
[WTS] 2025 Longines HydroConquest 39 - $950

2025 Longines HydroConquest 39 - $950

This is a 2025 Longines HydroConquest 39, a great everyday diver presented as a complete set. It has honest signs of wear and comes with a watch maxx kit, box, papers, and full links.

  • Condition: Good overall condition with visible signs of wear
  • Year: 2025
  • Included Accessories: Watch maxx kit,Box,Papers,Full links
  • Shipping Options: Buyer add $30 FedEx 2-Day Air or provide own label
Posted at
Mar 7, 2026, 5:21 PM
Active
[WTS] Longines - HydroConquest

Longines - HydroConquest

Longines HydroConquest with ceramic bezel in excellent condition. Comes complete with both boxes, hangtags, manual, extra links, and a Joma card.

Posted at
Mar 2, 2026, 10:06 PM
Active
[WTS] Longines Hydroconquest Blue 39mm - $1150

Longines Hydroconquest Blue 39mm - $1150

Longines - Hydroconquest · $1,150
A blue dial Longines Hydroconquest 39mm watch with a full kit, in excellent condition and keeping good time.

  • Condition: Great condition
  • Year purchased: 2025
  • Warranty duration: 5 years
Posted at
Mar 1, 2026, 8:14 PM
Active
[WTS] Longines Hydroconquest 41mm Two Tone

Longines Hydroconquest 41mm Two Tone

A Longines Hydroconquest 41mm Two Tone watch with a black dial and two tone finish. It is in very good condition with some minor wear.

  • Condition: Very Good Pre Owned Condition
  • Diameter: 41mm
Posted at
Feb 27, 2026, 3:34 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