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 41mm – Black dial – Full Kit – Warranty through Fev 2030!

Longines - HydroConquest GMT · $1,999

The Longines HydroConquest GMT is a 41mm watch with a black dial, featuring a full kit and an international warranty valid until 2030. It has been well-maintained and shows no signs of wear or damage.

Condition: Excellent condition
Size: 41mm diameter
Kit Type: Full Kit

Posted at

Oct 26, 2025, 2:49 PM

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USA, Longines Hydroconquest, Ref L3.781.3.96.9

Longines - L3.781.3.96.9 · $3,000

Material: Stainless steel

Posted at

Oct 24, 2025, 9:01 PM

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Longines HydroConquest – Ceramic Bezel 39mm, 2029 Warranty

Longines - L3.780.4.56.6 · $925

A black dial Longines Hydroconquest Ceramic Bezel in 39mm size, bought new in October 2024 and comes with a full kit.

Condition: Great condition with minor scratches on the bracelet and buckle
Size: 39mm diameter
Warranty Valid Until: October 2029

Posted at

Oct 23, 2025, 12:49 AM

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Reduced! Longines Hydroconquest 41mm ceramic, LNIB literally spotless

Longines - Hydroconquest 41mm ceramic · $1,050

This is a 41mm Longines Hydroconquest with a blue dial and blue ceramic bezel. It has not been worn extensively and comes with the original box and papers.

Condition: Like new in box
Diameter: 41mm
Bezel material: blue ceramic

Posted at

Oct 18, 2025, 8:33 AM

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Longines HydroConquest – Ceramic Bezel 39mm, 2029 Warranty

Longines - L3.780.4.56.6 · $950

A black dial Longines Hydroconquest Ceramic Bezel in 39mm size, bought new in October 2024.

Condition: Great condition on the case, crystal, and dial. Minor scratches from daily wear are visible on the bracelet and buckle.
Warranty Valid Until: October 2029
Size: 39mm

Posted at

Oct 16, 2025, 5:22 PM

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Longines Hydroconquest 41

Longines - L3.781.4.05.6 · $1,380

The Longines Hydroconquest 41 features a black dial and green ceramic bezel, comes with full kit, box, papers, warranty, and original purchase receipt.

Condition: essentially unworn
Shipping: CONUS only

Posted at

Oct 15, 2025, 8:12 PM

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BNIB Longines HydroConquest

Longines - HydroConquest

The Longines HydroConquest is a stylish and functional dive watch designed for everyday wear. It features a stainless steel case with a sleek design and a water-resistant construction.

Condition: Brand new in box (BNIB)

Posted at

Oct 15, 2025, 7:10 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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