Longines HydroConquest HydroConquest 41 Automatic Stainless Steel / Matte Black / Bracelet

Reference L3.781.4.05.6

Longines HydroConquest 41 Automatic Stainless Steel / Matte Black / Bracelet

About this watch

The Longines HydroConquest L3.781.4.05.6 is a remarkable timepiece that beautifully marries elegance with performance. Its striking design, reliable movement, and practical features make it an excellent choice for anyone looking to invest in a quality watch. It's not just about keeping time; it's about making a statement and enjoying the journey. With a robust design and reliable features, this watch is a true contender in the underwater adventure and everyday elegance arenas. The matte black finish exudes a sense of rugged sophistication, making it suitable for both formal settings and outdoor adventures. The round case measures 41 mm, striking the perfect balance between boldness and wearability. At the core of the HydroConquest L3.781.4.05.6 is the Longines Caliber L888.3, an automatic movement that boasts an impressive 65-hour power reserve.

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Key Features

Automatic Movement (Longines Caliber L888.3)
Stainless Steel Case and Bracelet
Rotating Dive Bezel (0-60)
Sapphire Crystal Glass
Water Resistance up to 300 meters
41 mm Diameter
21 mm Lug Width

Specifications

Brand

Longines

Family

HydroConquest

Model

HydroConquest 41 Automatic Stainless Steel / Matte Black / Bracelet

Reference

L3.781.4.05.6

Movement

l888-3

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

Longines - L3.781.4.56.6 · $740

This Longines Hydroconquest features a 41mm ceramic case, black dial, and is sized for an approximate 7.4" wrist.

Condition: Pre-owned with scratches on the case and bracelet
Case material: ceramic
Bracelet size: 7.4in diameter
Warranty: no warranty included

Posted at

Apr 26, 2026, 7:58 PM

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Longines HydroConquest L3.788.4.06 — 42mm Ceramic Bezel — Full Kit — 11 Days Old — $1999 Shipped 🔥

Longines - L3.788.4.06 · $1,999

This Longines HydroConquest features a modern configuration with a ceramic bezel and is practically new at just 11 days old.

Condition: Excellent overall, only very light hairlines present
Age: 11 days
Dimensions: 42mm diameter

Posted at

Apr 25, 2026, 8:50 PM

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Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700

Longines - L3.776.4, L3.741.4 · $600

Two Longines watches for sale, the Conquest L3.776.4 and the HydroConquest L3.741.4.

Condition: Very good
Case size: 39 mm
Year purchased: 2025
Clasp wear: minor wear on clasp from being stored at work desk

Posted at

Apr 25, 2026, 1:54 PM

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Longines HydroConquest 41 – $975

Longines - HydroConquest 41 · $975

This Longines HydroConquest 41 features a 41mm case, minimal wear, and comes with its box, papers, hangtag, and warranty card.

Condition: Very Good Pre-owned Condition
Case Size: 41mm diameter
Bracelet Condition: hairlines throughout polished surfaces, some desk wear

Posted at

Apr 25, 2026, 10:32 AM

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Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6

Longines - L3.788.4.98.6 · $2,200

The Longines Hydroconquest Exclusive features a 42mm case with a beautiful frosted blue dial and comes in brand new condition.

Condition: Brand new, unworn
Case size: 42mm

Posted at

Apr 24, 2026, 6:24 PM

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New Longines HydroConquest 42mm

Longines - HydroConquest 42mm · $2,050

A new Longines HydroConquest in the 42mm size, with a mesh band and box and papers included.

Condition: New
Case Size: 42mm
Band Type: mesh

Posted at

Apr 23, 2026, 8:54 AM

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Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,850

Longines - L3.783.4 · $1,850

The Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch that features a 41mm case, blue ceramic bezel, and screw-down crown. It houses the calibre L688.2, a column-wheel chronograph movement with a 54-hour power reserve.

Condition: Very good with minor usage marks
Case Size: 41 x 51mm stainless steel case with a thickness of 15.6mm and a lug width of 21mm
Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
Water Resistance: 300 (30 ATM)

Posted at

Apr 22, 2026, 3:35 PM

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