Longines HydroConquest Hydroconquest Quartz 39 Two Tone Black

Reference L3.640.3.56.7

About this watch

The Longines Hydroconquest Quartz 39 Two Tone Black is a stunning luxury watch that seamlessly blends style with functionality. Its rugged features and elegant aesthetics make it perfect for diving enthusiasts or anyone who appreciates fine craftsmanship. The combination of stainless steel and PVD gold creates an eye-catching contrast, while the black dial adorned with stick and dot indexes provides excellent readability. At the heart of this watch is the reliable Longines Caliber L263 quartz movement, offering a remarkable power reserve of approximately 26,280 seconds and featuring 7 jewels for durability and longevity. The water resistance of 300 meters makes it an ideal choice for divers or those who enjoy water sports, while the rotating bezel allows for precise timing underwater. Weighing in at a comfortable 39 mm, this watch feels just right on the wrist, striking a perfect balance between presence and wearability.

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Key Features

Stainless Steel Case with PVD Gold Coating
Quartz Movement (Longines Caliber L263)
300m Water Resistance
Rotating Dive Bezel (0-60)
Scratch-resistant Sapphire Crystal
Black Dial with Stick and Dot Indexes
Date Function

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Quartz 39 Two Tone Black

Reference

L3.640.3.56.7

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest GMT 43mm Olive Dial Ref L3.890.4.06.6 Full Kit $1650 net to me FIRM

Longines - L3.890.4.06.6 · $1,650

A lightly used Longines Hydroconquest GMT with a striking sun ray olive dial and ceramic bezel, perfect for both toughness and style.

Condition: Excellent, minor marks on clasp
Case Size: 43mm
Lug To Lug: 52mm
Thickness: 12.9mm

Posted at

Sep 5, 2025, 7:46 PM

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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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