Longines HydroConquest Hydroconquest Automatic 39

Reference L3.648.4.96.6

About this watch

The Longines Hydroconquest Automatic 39 (model L3.648.4.96.6) is a stunning blend of elegance and functionality, featuring a modified ETA 2824-2 movement with a power reserve of around 38 hours. The watch boasts a robust stainless steel case, a rotating dive bezel marked from 0-60, and a sapphire crystal glass that provides excellent clarity. With a water resistance of up to 300 meters, this timepiece is built to handle serious underwater conditions. The blue dial features stick and dot indexes that enhance readability while maintaining an elegant look. The luminous hands ensure you can easily tell the time in low-light conditions—essential for any diver. When stacked against other dive watches in its price range, the Hydroconquest holds its own remarkably, bringing a certain elegance that is hard to match. Whether you're a seasoned diver or simply someone who appreciates the finer things in life, this watch will not disappoint.

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Key Features

Modified ETA 2824-2 movement
Stainless steel case with rotating dive bezel
Sapphire crystal glass for excellent clarity

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Automatic 39

Reference

L3.648.4.96.6

Movement

l633-5

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 41mm LNIB

Longines - Hydroconquest 41mm · $900

41mm Longines Hydroconquest for sale in excellent condition, comes with a full set.

Condition: Like New In Box (LNIB)
Shipped: true

Posted at

Sep 5, 2025, 11:51 AM

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Longines HydroConquest Steel 44 Black Dial (Full-Set/Unpolished)

Longines - L3.841.4.56.6 · $995

A full steel diver's watch presented in outstanding condition, complete with its original box and papers.

Condition: Full-set/unpolished, never polished, excellent condition
Case size: 44mm diameter
Bracelet size: 8.5” / 21cm
Depth rating: no mention of depth rating

Posted at

Sep 4, 2025, 1:31 PM

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Longines Hydroconquest Green 41mm

Longines - 41mm Hydroconquest · $925

A 41mm Hydroconquest Green, a sporty yet elegant watch from Longines, featuring a rubber strap and a durable design.

Condition: Pre-owned with scuffs on clasp and lugs
Size: 41mm diameter
Strap Size Fit: 7.25 inches and smaller
Retail Price: 1775

Posted at

Sep 2, 2025, 9:13 AM

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Longines Hydroconquest GMT 43mm Olive Dial Ref L3.890.4.06.6 Full Kit $1700 net to me

Longines - L3.890.4.06.6 · $1,700

The Longines Hydroconquest GMT is a serious dive watch with a striking sun ray olive dial and ceramic bezel, featuring a 43mm case, 300m water resistance, and L844 Caliber.

Condition: Excellent with small marks on the clasp
Case size: 43mm diameter
Water resistance: 300m depth rating
Thickness: 12.9mm

Posted at

Aug 30, 2025, 11:02 AM

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Longines HydroConquest Steel 44 Black Dial (Full-Set/Unpolished)

Posted at

Aug 27, 2025, 4:19 PM

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Longines HydroConquest Blue 41mm – $850

Posted at

Aug 26, 2025, 9:06 PM

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Longines Hydroconquest 39mm

Posted at

Aug 25, 2025, 6:19 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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