Longines HydroConquest Hydroconquest Quartz 39 Black / Red

Reference L3.688.4.59.6

About this watch

Welcome to our comprehensive review of the Longines Hydroconquest Quartz 39 Black / Red, model L3.688.4.59.6! This timepiece embodies luxury, precision, and adventure. With a rich history dating back to 1832, Longines has crafted a name synonymous with elegance and functionality. The Hydroconquest family personifies this ethos, featuring a bold design, scratch-resistant sapphire crystal glass, and an impressive water resistance of 300 meters. This quartz movement watch is highly reliable, offering precision that mechanical movements can only aspire to achieve. With a power reserve of approximately 26,280 seconds, you can expect it to keep ticking for a long time without the need for frequent adjustments. The rotating bezel allows easy tracking of dive time, while the date function adds practicality to its impressive design. Whether you're a seasoned diver or a casual watch enthusiast, this timepiece deserves a place in your collection.

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Key Features

Quartz movement with 26,280-second power reserve
300-meter water resistance for diving and swimming
Scratch-resistant sapphire crystal glass for protection
Rotating bezel for easy dive time tracking
Date function for added practicality

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Quartz 39 Black / Red

Reference

L3.688.4.59.6

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

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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