Longines HydroConquest HydroConquest 39 Automatic Stainless Steel / Black / Bracelet

Reference L3.741.4.56.6

Longines HydroConquest 39 Automatic Stainless Steel / Black / Bracelet

About this watch

The Longines HydroConquest L3.741.4.56.6 is a statement of style, precision, and functionality. This rugged watch with a stunning black dial and robust stainless steel construction is designed to withstand the rigors of underwater adventures while maintaining a sophisticated look for everyday wear. The rotating bezel marked with a clear 0-60 scale adds utility and tactile feedback. At its heart lies the Longines caliber L888.2, a movement that speaks volumes about precision and reliability with a 65-hour power reserve and frequency of 25,200 vibrations per hour. With a water resistance of 300 meters, this watch is designed for serious divers and water enthusiasts. Its combination of aesthetics and functionality makes it a worthy addition to any collection.

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Key Features

41mm Stainless Steel Case
Sapphire Glass
Rotating Dive Bezel (0-60 scale)
Longines Caliber L888.2 Movement
65-hour Power Reserve
300m Water Resistance
Adjustable Stainless Steel Bracelet

Specifications

Brand

Longines

Family

HydroConquest

Model

HydroConquest 39 Automatic Stainless Steel / Black / Bracelet

Reference

L3.741.4.56.6

Movement

l888-2

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 42mm 2026

Longines - Hydroconquest 42mm · $2,050

For sale is a 2026 Longines Hydroconquest 42mm Black on Black watch, which comes as a full set with dated warranty card. It's in excellent condition with minimal signs of wear.

Condition: Like New, In Box (LNIB)
Case Size: 42mm
Color: Black on Black

Posted at

May 19, 2026, 7:48 PM

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Longines Hydroconquest 39mm black bezel - 2026 release

Longines - Hydroconquest 39mm black bezel · $2,050

A 39mm black bezel Longines Hydroconquest with a black dial, sold in full kit and unregistered for warranty purposes.

Condition: Like-new
Case diameter: 39mm
Condition notes: No scratches anywhere on the case, crystal or bracelet

Posted at

May 18, 2026, 4:29 PM

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Longines HydroConquest GMT 41mm – $1800

Longines - HydroConquest GMT · $1,800

This Longines HydroConquest GMT features a 41mm case and is in great condition, despite some minor imperfections on the bezel and bracelet.

Condition: Pre-owned with minor wear
Case Size: 41mm
Bezel Condition: Clean

Posted at

May 18, 2026, 9:22 AM

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Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - L3.740.3.56.7 · $550

A Longines Hydroconquest quartz two-tone diver watch, featuring a black dial and 41mm case size.

Condition: Pre-owned with light scratches
Case size: 41mm
Material: two tone

Posted at

May 17, 2026, 9:13 AM

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Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - L3.740.3.56.7 · $550

This Longines Hydroconquest is a fun and capable diver that comes in the 41mm version, featuring a black dial and quartz movement.

Condition: pre-owned with light scratches
Case Size: 41mm
Movement Type: quartz

Posted at

May 16, 2026, 7:05 PM

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Longines Hydroconquest 39mm black bezel/dial

Longines - 39mm black bezel/black dial Hydroconquest · $2,200

This Longines Hydroconquest 39mm features a black bezel and dial, is in excellent condition, and comes with its full kit including boxes, hangtags, warranty card, and owner's manual.

Condition: Like-new
Case size: 39mm diameter
Box status: full-kit
Warranty remaining: five years

Posted at

May 16, 2026, 5:17 PM

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