Longines HydroConquest Hydroconquest Automatic 39 Blue

Reference L3.694.4.03.6

About this watch

The Longines Hydroconquest Automatic 39 Blue is a stunning timepiece that seamlessly combines style, functionality, and durability. Its vibrant blue dial grabs attention immediately, while the robust stainless steel case measures 39.00 mm in diameter, providing a perfect balance of elegance and adventure. The watch features a sapphire crystal, Arabic numeral indexes, and proprietary hands designed for enhanced visibility and functionality. The rotating dive bezel is a functional tool for divers and water sports enthusiasts, with a 0-60 scale for tracking elapsed time underwater. At the core lies the Longines caliber L619.2, an automatic movement featuring a frequency of 28,800 vibrations per hour and a power reserve of approximately 42 hours. The watch displays hours, minutes, and seconds with ease, while also featuring a date function that enhances its practicality. With a water resistance rating of 300 meters, it's suitable for swimming, snorkeling, and serious diving. The stainless steel bracelet is sturdy yet lightweight, ensuring comfort during all activities. This luxury watch positions itself in the mid-range segment, delivering value for money with its quality materials, precision movement, and brand heritage.
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Key Features

  • Longines Caliber L619.2 automatic movement
  • 300-meter water resistance rating
  • Sapphire crystal glass
  • Rotating dive bezel with 0-60 scale
  • Stainless steel case and bracelet
  • Arabic numeral indexes and proprietary hands
  • Date function

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 39 Blue
Reference
L3.694.4.03.6
Movement
l619-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 39mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
Active
[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