Longines HydroConquest Hydroconquest Chronograph Quartz

Reference L3.690.4.19.6

About this watch

Are you on the hunt for a watch that combines elegance with functionality? Look no further! The Longines Hydroconquest Chronograph Quartz (model number L3.690.4.19.6) might just be the perfect fit for you. This timepiece is a beautiful blend of style, durability, and advanced technology. Renowned for their precision, Longines watches are often seen on the wrists of athletes and adventurers alike. With the Hydroconquest series, Longines has created a line that caters to both dive enthusiasts and casual wearers seeking reliability and style. The L3.690.4.19.6 model embodies these qualities with sophistication. The design of the Longines Hydroconquest Chronograph Quartz is striking. With a round case measuring 41mm in diameter, it sits comfortably on the wrist. The white dial is complemented by bold Arabic numerals that enhance readability. Plus, the stainless steel case gives it a robust feel, while the sapphire glass ensures durability against scratches. You can think of it as a knight in shining armor—elegant yet tough! The watch boasts a rotating bezel, which is a crucial feature for divers. This 0-60 dive scale allows you to track immersion times easily. Whether you’re counting down minutes of an underwater exploration or timing a cooking session, this bezel is practical and user-friendly. The closed back adds to the watch’s sleek look while ensuring it remains waterproof up to 300 meters. With a lug width of 21mm, this watch can accommodate a variety of straps, giving you the flexibility to switch up your style. At the core of this timepiece is the Longines caliber L541, a quartz movement based on the ETA Flatline 251.262. This movement is known for its reliability and precision. You can trust that this watch will keep accurate time, whether you're in the boardroom or diving into the ocean. What sets this model apart is its chronograph functionality. You have hours, minutes, and small seconds displayed clearly, along with a date function. This makes it not just a watch, but a tool for timing events. Ever needed to measure your running time? With this chronograph, you can do just that! One of the standout features of the Hydroconquest Chronograph Quartz is its impressive water resistance of 300 meters. This means you can take it for a swim, snorkel, or even dive without a second thought. It's like having a loyal companion that’s always ready for an adventure in the water!
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Key Features

  • 41mm Round Stainless Steel Case
  • Quartz Movement with Chronograph Functionality
  • 300m Water Resistance and Rotating Bezel
  • Sapphire Glass and Arabic Numerals on White Dial
  • Proprietary Hands and Lug Width of 21mm

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Chronograph Quartz
Reference
L3.690.4.19.6
Movement
l541
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Stainless Steel 41mm
Dial Color
White
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
[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
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