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!
Buy Now on Jomashop
This is an affiliate link

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 39mm Green Ceramic Bezel 2026 NEW L3.779.4.06.6 – $2800 + shipping

Longines HydroConquest 39mm Green Ceramic Bezel 2026 NEW L3.779.4.06.6 – $2800 + shipping

Longines - L3.779.4.06.6 · $2,800
This Longines HydroConquest features a stunning green ceramic bezel and matching dial, with a 39mm size that wears well on the wrist.

  • Condition: Brand new
  • Case Size: 39mm diameter
  • Bezel Material: green ceramic
Posted at
Apr 17, 2026, 6:00 AM
Active
[WTS] 2026 Longines Hydroconquest 39mm - Grey Bezel / Black Dial

2026 Longines Hydroconquest 39mm - Grey Bezel / Black Dial

Longines - L3-779-4-70-6 · $2,100
This 2026 Longines Hydroconquest is a 39mm grey bezel/black dial watch, purchased directly from Longines and regularly worn. It's free of major scratches or dents but has minor wear on the back of one lug.

  • Condition: Excellent to LNIB (like new in box)
  • Bracelet length: up to an 8in wrist
  • Bent link pin: one link pin is bent and unusable
  • Included accessories: all original packaging, accessories, and paperwork
Posted at
Apr 16, 2026, 3:09 PM
Active
[WTS] Longines HydroConquest Sunray Blue- L3.790.4.96.6

Longines HydroConquest Sunray Blue- L3.790.4.96.6

Longines - L3.790.4.96.6 · $2,900
A brand new Longines HydroConquest with sunray blue dial, featuring a new box and papers.

  • Condition: Brand new
  • Box And Papers: brand new
Posted at
Apr 16, 2026, 12:11 PM
Active
[WTS] Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested

Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested

The Longines HydroConquest GMT is a 41mm timepiece that comes as a full set including box, papers, and all original accessories. It is in completely unworn condition.

  • Condition: Unworn
  • Case Size: 41mm
  • Set: Full set including box, papers, and all original accessories
Posted at
Apr 16, 2026, 11:26 AM
Active
[WTS] Longines Hydroconquest GMT 41mm Black (Nov 2024)- $2950 AUD (Sydney, Australia)

Longines Hydroconquest GMT 41mm Black (Nov 2024)- $2950 AUD (Sydney, Australia)

Longines - L3.826.4.53.2 · $2,950
a black Longines Hydroconquest GMT watch with a 41mm case size.

  • Material: Stainless Steel
  • Diameter: 41mm
  • Depth rating: 300m
Posted at
Apr 16, 2026, 9:54 AM
Active
[WTS] Longines HydroConquest 41mm

Longines HydroConquest 41mm

Longines - L3.781.4.96.6 · $1,100
A Longines HydroConquest 41mm watch with a blue sunburst dial, featuring a clean crystal and flawless dial.

  • Condition: Excellent pre-owned condition
  • Diameter: 41mm
Posted at
Apr 15, 2026, 3:43 PM
Active
[WTS] Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,900

Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,900

Longines - L3.783.4 · $1,900
This Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch featuring a blue ceramic bezel and screw-down crown, powered by the calibre L688.2 column-wheel chronograph movement with a 54-hour power reserve.

  • Condition: Very good with minor usage marks
  • Case Size: 41mm x 51mm stainless steel case, 15.6mm thickness, 21mm lug width
  • Movement: Longines L688.2 automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
  • Water Resistance: 300m (30 ATM)
Posted at
Apr 15, 2026, 11:30 AM
Active
[WTS] Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950

Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950

Longines - L3.790.4.56.6 · $1,950
This Longines HydroConquest GMT Black is a modern dive watch with excellent everyday wearability, offering both tool watch functionality and travel convenience.

  • Condition: Excellent pre-owned
  • Case size: 41mm diameter
  • Water resistance: 300m
Posted at
Apr 14, 2026, 9:45 PM
Active
[WTS] (Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB

(Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB

This newly released Longines Hydroconquest is a large watch with exceptional fit and finish. It comes in its original packaging with a full kit and warranty.

  • Condition: LNIB (Like New In Box)
  • Case size: 42mm
  • Water resistance: not specified
Posted at
Apr 13, 2026, 2:48 PM
Active