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

Reference L3.781.3.06.9

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

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

Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,850

Longines - L3.783.4 · $1,850

The Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch that features a 41mm case, blue ceramic bezel, and screw-down crown. It houses the calibre L688.2, a column-wheel chronograph movement with a 54-hour power reserve.

Condition: Very good with minor usage marks
Case Size: 41 x 51mm stainless steel case with a thickness of 15.6mm and a lug width of 21mm
Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
Water Resistance: 300 (30 ATM)

Posted at

Apr 22, 2026, 3:35 PM

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Longines HydroConquest GMT 41mm Black, Full Kit, June 2025

Longines - HydroConquest GMT · $1,980

Up for sale is my mint condition Longines HydroConquest GMT, a full kit with box, papers, tags, and over 4 years left on the factory warranty.

Condition: Mint condition
Case dimensions: 41mm diameter, 49mm lug to lug, 12.9mm thickness
Movement: L844.5 with 72hrs power reserve
Water resistance: 300m

Posted at

Apr 19, 2026, 10:47 PM

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Longines Hydroconquest 39mm Black MINT

Longines - Hydroconquest 39mm Black · $2,200

A mint condition Longines Hydroconquest 39mm in black with a super comfortable bracelet and excellent bezel action.

Condition: MINT
Bracelet type: Super comfortable bracelet
Clasp type: Excellent on the fly clasp
Bezel action: Great bezel action

Posted at

Apr 19, 2026, 9:12 AM

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Longines HydroConquest 39mm Green Ceramic Bezel 2026 NEW L3.779.4.06.6 – $2800 + shipping

Longines - L3.779.4.06.6 · $2,800

This Longines HydroConquest features a stunning green ceramic bezel and matching dial, with a 39mm size that wears well on the wrist.

Condition: Brand new
Case Size: 39mm diameter
Bezel Material: green ceramic

Posted at

Apr 17, 2026, 6:00 AM

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2026 Longines Hydroconquest 39mm - Grey Bezel / Black Dial

Longines - L3-779-4-70-6 · $2,100

This 2026 Longines Hydroconquest is a 39mm grey bezel/black dial watch, purchased directly from Longines and regularly worn. It's free of major scratches or dents but has minor wear on the back of one lug.

Condition: Excellent to LNIB (like new in box)
Bracelet length: up to an 8in wrist
Bent link pin: one link pin is bent and unusable
Included accessories: all original packaging, accessories, and paperwork

Posted at

Apr 16, 2026, 3:09 PM

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Longines HydroConquest Sunray Blue- L3.790.4.96.6

Longines - L3.790.4.96.6 · $2,900

A brand new Longines HydroConquest with sunray blue dial, featuring a new box and papers.

Condition: Brand new
Box And Papers: brand new

Posted at

Apr 16, 2026, 12:11 PM

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[WTS] Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested

Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested

Longines - HydroConquest GMT · $1,700

The Longines HydroConquest GMT is a 41mm timepiece that comes as a full set including box, papers, and all original accessories. It is in completely unworn condition.

Condition: Unworn
Case Size: 41mm
Set: Full set including box, papers, and all original accessories

Posted at

Apr 16, 2026, 11:26 AM

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