Longines HydroConquest Hydroconquest Chronograph Quartz

Reference L3.690.4.59.6

About this watch

The Longines Hydroconquest Chronograph Quartz is a statement piece that embodies elegance and functionality. Its robust design, featuring a black dial against a stainless steel case, creates a bold yet sophisticated look. The rotating bezel with smooth operation adds to the overall functionality, perfect for timing dives accurately. With a diameter of 41.00 mm, this watch sits comfortably on most wrists. The heart of the Hydroconquest Chronograph is the Longines Caliber L541, a quartz movement known for its reliability and accuracy. This movement is designed to withstand the test of time with 27 jewels, ensuring accurate timekeeping with minimal maintenance. The chronograph function is incredibly practical, allowing you to time your swimming laps or track cooking times with ease. The sapphire crystal offers exceptional scratch resistance and clarity, while the stainless steel bracelet feels premium and is adjustable for a perfect fit. With its impressive water resistance of 300 meters, this watch is built to withstand the elements, making it perfect for outdoor enthusiasts.

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Key Features

41mm diameter stainless steel case
Quartz movement with 27 jewels
Chronograph function with pushers and sub-dials
Sapphire crystal for exceptional scratch resistance
300m water resistance
Adjustable stainless steel bracelet
Arabic numerals on a black dial

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Chronograph Quartz

Reference

L3.690.4.59.6

Movement

l541

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph

Case

Stainless Steel 41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines HydroConquest 41 – $975

Longines - HydroConquest 41 · $975

This Longines HydroConquest 41 features a 41mm case, minimal wear, and comes with its box, papers, hangtag, and warranty card.

Condition: Very Good Pre-owned Condition
Case Size: 41mm diameter
Bracelet Condition: hairlines throughout polished surfaces, some desk wear

Posted at

Apr 25, 2026, 10:32 AM

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Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6

Longines - L3.788.4.98.6 · $2,200

The Longines Hydroconquest Exclusive features a 42mm case with a beautiful frosted blue dial and comes in brand new condition.

Condition: Brand new, unworn
Case size: 42mm

Posted at

Apr 24, 2026, 6:24 PM

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New Longines HydroConquest 42mm

Longines - HydroConquest 42mm · $2,050

A new Longines HydroConquest in the 42mm size, with a mesh band and box and papers included.

Condition: New
Case Size: 42mm
Band Type: mesh

Posted at

Apr 23, 2026, 8:54 AM

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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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