Longines HydroConquest Hydroconquest Quartz 41 Black

Reference L3.689.4.53.6

About this watch

The Longines Hydroconquest Quartz 41 Black is a stunning addition to the HydroConquest family, perfectly marrying functionality with style. Its striking black dial and robust design make it suitable for various occasions, from casual beach outings to formal dinners. The watch's stainless steel case has a diameter of 41mm, striking a balance between bulkiness and daintiness. The rotating bezel is functional, allowing divers to track their time underwater easily, while the 0-60 markings add a sporty flair. The proprietary hands offer a unique touch, and the date function is conveniently located for easy schedule keeping. At the heart of the Hydroconquest is the Longines caliber L115 movement, designed for precision and reliability. With a frequency of 28,800 vibrations per hour and a power reserve of 26,280 seconds, this quartz movement ensures accuracy and eliminates the need for frequent winding. The watch's impressive water resistance of 300 meters makes it perfect for aquatic adventures, while the sapphire glass is scratch-resistant to maintain its pristine look. The stainless steel bracelet feels sturdy yet comfortable on the wrist, adapting effortlessly to various lifestyles.
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Key Features

  • Longines Caliber L115 Quartz Movement
  • 41mm Stainless Steel Case with Rotating Bezel
  • 300m Water Resistance and Sapphire Glass
  • Proprietary Hands and Date Function
  • Stainless Steel Bracelet for Comfortable Wear

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Quartz 41 Black
Reference
L3.689.4.53.6
Movement
l115
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest Commonwealth 39mm BNIB

Longines Hydroconquest Commonwealth 39mm BNIB

The Longines Hydroconquest Commonwealth is a limited edition watch from 2026, available in 39mm size. It comes with inner and outer boxes, tags, papers, and warranty.

  • Condition: Brand New In Box (BNIB)
  • Case size: 39mm
  • Limited edition: 2026
Posted at
May 12, 2026, 6:50 PM
Active
[WTS] Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint

Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint

Longines - L3.779.4.09.9 $2,950
A limited edition Longines Hydroconquest, purchased just a week ago and still under warranty.

  • Condition: Mint
  • Case Size: 39mm
  • Limited Edition Quantity: 2026 pieces
  • Warranty Length: five years
Posted at
May 12, 2026, 4:37 PM
Active
[WTS] Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750

Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750

This Longines HydroConquest is an excellent daily-wear diver with great proportions and comfortable sizing, featuring a black dial and ceramic bezel. The watch is running well and keeping great time.

  • Condition: Excellent daily-wear, shows wear from use on the bracelet
  • Case Size: 39mm diameter
  • Bracelet Type: black ceramic bezel + bracelet + WOE NATO
Posted at
May 12, 2026, 4:18 PM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 馃殺

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 馃殺

Longines - L3.740.3.56.7 $600
A quartz-powered diver's watch from Longines, featuring a black dial and two-tone yellow gold PVD finish on the 41mm case.

  • Condition: Good (light scratches)
  • Case size: 41mm
  • Material: two tone yellow gold PVD
  • Movement: quartz
Posted at
May 10, 2026, 5:48 PM
Active
[WTS] Longines Hydroconquest 43mm (updated pictures)

Longines Hydroconquest 43mm (updated pictures)

Longines - L3.782.4.56.6 $1,260
This Longines Hydroconquest 43mm features a black dial on a stainless steel bracelet and has been worn only 4-6 times since its purchase. It comes with a full set, including the box, tags, warranty cards, and is still under Jomashop's 2-year warranty.

  • Condition: Fantastic, worn 4-6 times
  • Case size: 43mm
  • Lug to lug: 53mm
  • Thickness: 11.90mm
Posted at
May 9, 2026, 4:10 PM
Active
[WTS] (brand new) Longines HydroConquest 39mm - $1800 shipped

(brand new) Longines HydroConquest 39mm - $1800 shipped

Longines - HydroConquest $1,800
This brand new Longines HydroConquest features a black dial, stainless steel case and bracelet, sapphire crystal with anti-reflective coating, and is powered by the L888.4 automatic movement.

  • Condition: Unworn
  • Case material: stainless steel
  • Bracelet material: stainless steel
  • Water resistance: 300m
Posted at
May 9, 2026, 1:11 PM
Active
[WTS] 2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set

2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set

Longines - L3.779.4.56.6 $1,900
The newly redesigned Longines HydroConquest in the highly sought-after 39mm size, featuring a refined dial and upgraded bracelet.

  • Condition: Excellent Used Condition
  • Size: 39mm diameter
  • Thickness: ~11.9mm
  • Lug-to-lug length: 47mm
Posted at
May 7, 2026, 8:43 PM
Active
[WTS] Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.

Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.

Longines - L3.782.4.56.6 $1,350
A Longines Hydroconquest 43mm watch on a black dial with a stainless steel bracelet, now on an Ali Rubber strap.

  • Condition: Mint condition, worn approximately 5 times
  • Case size: 43mm diameter
  • Lug to lug: 53mm
  • Thickness: 11.90mm
Posted at
May 7, 2026, 4:43 AM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 馃殺

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 馃殺

Longines - L3.740.3.56.7 $600
This Longines Hydroconquest is a 41mm two-tone diver's watch with a quartz movement.

  • Condition: Used with light scratches
  • Size: 41mm diameter
Posted at
May 6, 2026, 9:43 PM
Active