Longines HydroConquest Hydroconquest Quartz 41 Black / Red

Reference L3.689.4.59.6

About this watch

The Longines Hydroconquest Quartz 41 Black / Red is a stunning timepiece that beautifully marries style and function. Crafted from stainless steel, this watch boasts a resilient exterior with a round shape and 41.00 mm diameter, making it perfect for various wrist sizes. The black dial, adorned with vibrant red accents, creates a bold contrast that's hard to ignore. At the heart of the Hydroconquest is the Longines Caliber L115 movement, based on the reliable ETA 955.112, guaranteeing precision with a staggering reserve of 26,280 vibrations per hour. This quartz movement keeps accurate time, eliminating the frustration of frequent adjustments. The dial features Arabic numerals and proprietary hands that glow in the dark, while the date display is seamlessly integrated into the design, maintaining the watch's sleek appearance. The rotating bezel allows you to track elapsed time underwater, making it an essential feature for safe diving practices. With a 0-60 scale, it provides practicality without sacrificing style. The stainless steel bracelet complements its rugged design, and the deployment clasp adds extra security, preventing accidental openings during your adventures.

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Key Features

Stainless Steel Case
Sapphire Glass Crystal
Quartz Movement (Longines Caliber L115)
Water Resistance up to 300 meters
Rotating Bezel with 0-60 scale
Date Display
Adjustable Stainless Steel Bracelet

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Quartz 41 Black / Red

Reference

L3.689.4.59.6

Movement

l115

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 41mm Blue - $850

Longines - L37424966 · $850

A Longines Hydroconquest 41mm automatic diver features a blue sunburst dial, matching blue ceramic bezel and has excellent timekeeping capabilities.

Condition: Excellent with light signs of wear
Case size: 41mm diameter
Bezel material: Ceramic
Bracelet condition: Light scuffs on the clasp

Posted at

Feb 11, 2026, 1:00 PM

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2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

Longines - L3.782.4 · $999

2024 Longines HydroConquest watch with 43mm black ceramic case.

Case material: black ceramic
Size: 43mm diameter

Posted at

Feb 8, 2026, 1:07 PM

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Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines - Hydroconquest 41m · $1,050

For sale is my Longines Hydroconquest 41m ceramic automatic in green. It's a stainless steel case with ceramic bezel and Swiss automatic movement (Longines Calibre L888 series) with approx. 72 hr power reserve.

Condition: Used
Case Size: 41 mm diameter
Case Material: Stainless steel case
Movement: Longines Calibre L888 series, approx. 72 hr power reserve

Posted at

Feb 6, 2026, 9:31 AM

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Longines HydroConquest (Ref. L3.782.4.96.6) $975

Longines - L3.782.4.96.6 · $975

The Longines HydroConquest is a 43mm Swiss automatic diver’s watch featuring a sunray blue dial and 300 meter water resistance.

Condition: Very good pre-owned
Diameter: 43mm
Water Resistance: 300m depth rating
Movement: L888 caliber

Posted at

Feb 4, 2026, 11:11 PM

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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

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