Longines HydroConquest Hydroconquest Automatic 41

Reference L3.649.4.96.6

About this watch

The Longines Hydroconquest Automatic 41 is a stunning timepiece that embodies the brand's commitment to craftsmanship and style, boasting a vibrant blue dial and polished stainless-steel case. This luxury dive watch combines functionality with sophistication, offering a perfect balance of readability and style. The automatic movement, based on the reliable ETA 2824-2, has 25 jewels and offers a power reserve of 38 hours, ensuring precision and accuracy. With its impressive water resistance of 300 meters, this watch is built to withstand the pressures of underwater adventures, making it a worthy addition to any collection.

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Key Features

Longines caliber L633.5 automatic movement
Polished stainless-steel case with rotating bezel
Sapphire glass with blue dial and mixed indexes
300-meter water resistance
41mm diameter with 21mm lug width
Stainless steel construction with tactile rotating bezel

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Automatic 41

Reference

L3.649.4.96.6

Movement

l633-5

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 41mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 43mm -Like New

Longines - L3.782.4.56.6 · $1,180

This Longines Hydroconquest is a 43mm watch with a black dial, purchased new in April and still in fantastic condition.

Condition: Like New
Case size: 43mm
Lug to lug length: 53
Thickness: 11.90mm

Posted at

May 25, 2026, 6:20 PM

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Longines Hydroconquest 41mm - Black Dial

Longines - L3.781.4.56.6 · $975

A Longines Hydroconquest 41mm Automatic watch with a black dial, stainless steel case, and ceramic bezel.

Condition: Good condition, minor scratches/scuffs in sapphire and minimal wear marks on bracelet and clasp
Case size: 41mm diameter
Bezel material: stainless steel and ceramic
Bracelet type: original bracelet (and links)

Posted at

May 24, 2026, 3:31 PM

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Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,750

Longines - L3.783.4 · $1,750

The Longines Hydroconquest Chronograph 41 is a high-performance Swiss diver's watch featuring a blue ceramic bezel and screw-down crown, powered by the L688.2 column-wheel chronograph movement with a 54-hour power reserve.

Condition: Very good with minor usage marks
Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
Case size: 41mm diameter
Thickness: 15.6mm

Posted at

May 24, 2026, 12:47 PM

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Longines Hydroconquest 43mm

Longines - L3.782.4.56.6 · $1,240

The watch is a Longines Hydroconquest model L3.782.4.56.6 with a black dial and a 43mm case size.

Condition: Brand new with minor use (about a month)
Case size: 43mm diameter
Lug to lug length: 53mm
Thickness: 11.90mm

Posted at

May 22, 2026, 4:14 PM

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(brand new) Longines HydroConquest 39mm - $1700 shipped

Longines - HydroConquest · $1,700

This brand new Longines HydroConquest features a 39mm stainless steel case with black dial and ceramic bezel insert, along with a date display at the 3 o'clock position.

Condition: Unworn
Case material: stainless steel
Bracelet material: stainless steel
Water resistance: 300m

Posted at

May 21, 2026, 8:02 PM

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Longines hydroconquest 39 mm green

Longines - hydroconquest 39 mm green · $1,995

This Longines HydroConquest is a recent purchase from a US authorized dealer, still in its original packaging and with all papers.

Condition: great condition
Bracelet condition: has a small ding on the clasp
Box and paper status: all included
Additional strap type: aftermarket rubber

Posted at

May 21, 2026, 9:48 AM

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Longines HydroConquest 39mm Blue – Full Set – Excellent Condition

Longines - HydroConquest 39mm Blue · $1,900

This Longines HydroConquest is a 39mm watch with an automatic movement and ceramic bezel, featuring a blue dial and bezel.

Condition: Excellent Condition
Case size: 39mm diameter

Posted at

May 21, 2026, 4:05 AM

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[WTS] RARE CONFIGURATION Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Worn | Full Kit | Warranty Card 5/8/26

RARE CONFIGURATION Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Worn | Full Kit | Warranty Card 5/8/26

Longines - L3.788.4.06.6 · $2,285

This is a rare configuration Longines HydroConquest 42mm watch with a green ceramic bezel and a green lacquered dial. It features an automatic movement, 300m water resistance, and a full kit including the original box, papers, and warranty card.

Condition: never worn
Bracelet: upgraded Longines mesh style bracelet
Movement: Calibre L888.5, automatic, silicon balance spring, 72hr power reserve
Water Resistance: 300m / 30 bar

Posted at

May 20, 2026, 3:53 PM

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