Longines HydroConquest Hydroconquest Quartz 39 Black

Reference L3.640.4.56.6

About this watch

The Longines Hydroconquest Quartz 39 Black is a stunning timepiece that masterfully blends functionality with style. Founded in 1832, Longines has built a legacy around precision and elegance, known for their rich history and involvement in sports timing. The Hydroconquest collection is designed specifically for water sports and diving enthusiasts, emphasizing performance, reliability, and durability. This watch boasts a sleek black dial, stainless steel case, and rotating bezel marked from 0 to 60, adding to its sporty aesthetics. With a water resistance of up to 300 meters, you can rely on it to withstand the elements. At the heart of the Hydroconquest is the Longines caliber L263, a quartz movement based on the ETA 955.412, providing precision and minimal maintenance. Equipped with hours, minutes, seconds, and date display, this watch covers all the basics. Its versatile design makes it suitable for both casual and formal occasions, while its comfortable stainless steel bracelet feels secure and easy to operate.

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Key Features

Quartz movement based on ETA 955.412
Water resistance up to 300 meters
Sleek black dial with stick and dot indexes
Rotating bezel marked from 0 to 60 for diving
Stainless steel case with sapphire glass
Date display and analog display for easy readability
Comfortable stainless steel bracelet with secure clasp

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Quartz 39 Black

Reference

L3.640.4.56.6

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 39mm

Posted at

Aug 25, 2025, 6:19 PM

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REDUCED Longines Hydroconquest GMT 41mm - AD Purchase

Posted at

Aug 25, 2025, 10:56 AM

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Longines Hydroconquest 43mm - $950

Longines - Hydroconquest 43mm · $950

This Longines HydroConquest 43mm is in excellent working order and comes with a WatchMaxx full kit.

Condition: Great condition
Depth rating: 200m

Posted at

Aug 21, 2025, 12:02 AM

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Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped

Longines - L3.780.3 · $999

a Longines HydroConquest Ref. L3.780.3, a Two-Tone Steel & Rose Gold PVD automatic diver watch with a 39mm case size.

Case Material: steel and rose gold PVD
Water Resistance: 39mm diameter

Posted at

Aug 18, 2025, 9:52 PM

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Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel

Longines - L3.781.4.05.2 · $1,240

This Longines HydroConquest features a green ceramic bezel, automatic movement with date display, and a power reserve of up to 72 hours.

Condition: Like new/never worn
Case size: 41mm diameter
Water resistance: 30 bar
Crystal material: scratch-resistant sapphire crystal

Posted at

Aug 18, 2025, 7:39 PM

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For Sale – Longines HydroConquest Automatic (Ref. L3.649.4, Navy Dial) – €600 ONO Automatic 41mm with the navy blue dial.

Posted at

Aug 16, 2025, 7:17 AM

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Longines Hydroconquest Quartz 39mm - Very good condition - $500 shipped in US

Posted at

Aug 14, 2025, 7:47 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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