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

[WTS] Longines Hydroconquest SS Rose Gold Accents 39mm Ref L3.780.3.78.6 2024 Full Kit plus rubber strap $1100 net to me

Longines Hydroconquest SS Rose Gold Accents 39mm Ref L3.780.3.78.6 2024 Full Kit plus rubber strap $1100 net to me

Longines - L3.780.3.78.6 · $1,100
A Longines Hydroconquest SS watch with rose gold accents and a sunray grey dial, featuring a 39mm case and various water resistance and durability features.

  • Condition: Pre-owned
  • Case Size: 39mm diameter
  • Lug Width: 19mm
  • Thickness: 12mm
Posted at
Aug 23, 2025, 10:43 AM
Active
[WTS] 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
Active
[WTS] Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped

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
Active
[WTS] Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel

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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[WTS] Longines Hydroconquest GMT Black 41mm - Full set with extras $1850

Longines Hydroconquest GMT Black 41mm - Full set with extras $1850

41mm Longines Hydroconquest GMT with full set of extras, including OEM rubber strap and two additional straps.

  • Condition: Excellent
  • Case size: 41mm
  • Included extras: Longines black rubber strap, Longines style leather strap, orange cut-to-size strap
Posted at
Aug 11, 2025, 4:30 PM
Active
Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

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
Active