Longines HydroConquest HydroConquest 41 Automatic Stainless Steel / Yellow Gold / Green / Rubber

Reference L3.781.3.06.9

About this watch

The Longines HydroConquest 41 Automatic L3.781.3.06.9 is an exceptional luxury dive watch that exudes sporty elegance while delivering robust performance. Its striking green dial and PVD gold-coated stainless steel case create a stunning visual effect, while the ceramic bezel enhances durability and scratch resistance. The proprietary hands add a touch of uniqueness to the watch, ensuring readability even in low-light conditions. The date window at three o'clock provides practicality without disrupting the overall balance of the design. With its automatic movement boasting a silicon balance spring, this watch is both precise and robust against magnetic fields, featuring a power reserve of 64 hours and a frequency of 28,800 vibrations per hour. Certified by the COSC, it meets stringent standards for accuracy. The rubber strap offers comfort and flexibility, making it ideal for active lifestyles. With a water resistance of 300 meters, this watch is built for adventure, whether diving deep into the ocean or snorkeling at a tropical beach. Its robust construction, including sapphire glass and ceramic bezel, ensures that it can withstand the rigors of underwater exploration. The Longines HydroConquest 41 Automatic L3.781.3.06.9 is an excellent choice for those who appreciate style, performance, and durability in a luxury dive watch.
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Key Features

  • Longines Caliber L888.5 automatic movement
  • Ceramic bezel with rotating 0-60 scale
  • Scratch-resistant sapphire glass
  • 300-meter water resistance
  • PVD gold-coated stainless steel case
  • Unique green dial design
  • Proprietary hands for improved readability

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Stainless Steel / Yellow Gold / Green / Rubber
Reference
L3.781.3.06.9
Movement
l888-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer
Case
41mm
Dial Color
Green
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines - HydroConquest

Longines - HydroConquest

Longines - L3.841.4.96.6 · $1,799
This Longines HydroConquest comes with both boxes and various accessories, featuring a 44mm case size.

  • Case size: 44mm diameter
  • Bracelet size fits: 8 inch wrist
  • Comes with: both boxes, hangtags, booklet, extra link
Posted at
Feb 24, 2026, 9:11 PM
Active
[WTS] Longines HydroConquest GMT 41mm L3.790.4

Longines HydroConquest GMT 41mm L3.790.4

Longines - L3.790.4 · $1,799
This Longines HydroConquest GMT is a 41mm watch featuring a 6.5 inch bracelet and an aftermarket rubber strap with deployant.

  • Bracelet Length: 6.5 inches
  • Case Size: 41mm
Posted at
Feb 19, 2026, 5:35 PM
Active
[WTS] Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines - L3.782.4 · $1,095
This Longines HydroConquest automatic watch features a black dial and 43mm case size, which provides a strong wrist presence.

  • Condition: very good
  • Case size: 43mm diameter
  • Case wear: normal wear consistent with careful use
Posted at
Feb 18, 2026, 4:40 PM
Active
[WTS] Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

A green ceramic automatic watch from Longines, part of the Hydroconquest series, featuring a Swiss movement with 72-hour power reserve.

  • Condition: Used with signs of wear
  • Case diameter: 41 mm
  • Water resistance: 300m / 30 bar
  • Movement: Longines Calibre L888 series with 72hr power reserve
Posted at
Feb 16, 2026, 4:12 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