Longines HydroConquest Hydroconquest Quartz 39 Green

Reference L3.640.4.06.6

About this watch

When it comes to watches, few names resonate like Longines. The Hydroconquest Quartz 39 Green embodies the spirit of adventure while ensuring functionality. This timepiece beautifully balances style, functionality, and durability. It stands out in the crowded field of dive watches and offers an impressive array of features that cater to both adventure seekers and everyday wearers alike. The stunning green sunburst dial is not only striking but also versatile enough to pair with various outfits. The combination of the green dial with the stainless steel case creates a beautiful contrast that is both eye-catching and elegant. At the heart of the Hydroconquest Quartz 39 Green is the Longines Caliber L263, a quartz movement based on the reliable ETA 955.412. This means you can expect not just accuracy but also a long lifespan from this timepiece. With a water resistance rating of up to 300 meters, the Hydroconquest is more than ready for aquatic adventures. The rotating bezel smoothly rotates with a reassuring click, ensuring accurate timing for your underwater adventures.

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Key Features

Longines Caliber L263 Quartz Movement
Sapphire Glass for Scratch Resistance and Clarity
Rotating 0-60 Bezel for Accurate Dive Timekeeping
300m Water Resistance for Aquatic Adventures
Stainless Steel Case with Robust Construction
Green Sunburst Dial for Versatile Styling Options
Proprietary Hands and Stick/Dot Indexes

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Quartz 39 Green

Reference

L3.640.4.06.6

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Green

Crystal

Sapphire

Water Resistance

300

Current Listings

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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