Longines HydroConquest HydroConquest 41 Quartz Stainless Steel / Yellow Gold / Black / Bracelet

Reference L3.740.3.56.7

Longines HydroConquest 41 Quartz Stainless Steel / Yellow Gold / Black / Bracelet

About this watch

The Longines HydroConquest 41 Quartz is a masterful blend of elegance and functionality, designed for those who appreciate adventure without sacrificing style. With its sleek black dial, striking PVD gold accents, and round case measuring 39.00 mm in diameter, this watch stands out as an eye-catcher. The stainless steel construction and scratch-resistant sapphire glass ensure durability and readability, while the secure clasp and well-crafted links of the bracelet provide a seamless flow that complements the overall design. Powered by the reliable Longines caliber L157 movement, this quartz timepiece offers unmatched accuracy and reliability, making it perfect for those who want a watch that always tells the right time without the need for winding. With its impressive water resistance of 300 meters, rotating bezel, and date display, the HydroConquest is not just a stylish accessory but also a functional tool. Its mixed indexes and proprietary hands provide a unique visual appeal that sets it apart from typical diving watches, making it suitable for both formal and casual occasions.

Buy Now on Jomashop

This is an affiliate link

Key Features

39mm stainless steel case with PVD gold coating
Scratch-resistant sapphire crystal glass
300-meter water resistance
Rotating bezel marked 0-60
Date display
Quartz movement (Longines caliber L157)
Stainless steel bracelet with secure clasp

Specifications

Brand

Longines

Family

HydroConquest

Model

HydroConquest 41 Quartz Stainless Steel / Yellow Gold / Black / Bracelet

Reference

L3.740.3.56.7

Movement

l157

Movement Features

Hours, Seconds, Minutes
Date

Case

Stainless Steel 39mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - L3.740.3.56.7 · $550

A Longines Hydroconquest quartz two-tone diver watch, featuring a black dial and 41mm case size.

Condition: Pre-owned with light scratches
Case size: 41mm
Material: two tone

Posted at

May 17, 2026, 9:13 AM

Active

View listing on r/WatchExchange

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - L3.740.3.56.7 · $550

This Longines Hydroconquest is a fun and capable diver that comes in the 41mm version, featuring a black dial and quartz movement.

Condition: pre-owned with light scratches
Case Size: 41mm
Movement Type: quartz

Posted at

May 16, 2026, 7:05 PM

Active

View listing on r/WatchExchange

Longines HydroConquest 42mm

Longines - L3.788.4.96.6 · $1,900

This listing is for a brand new Longines HydroConquest 42mm blue dial watch, featuring a ceramic bezel and quick micro adjust bracelet.

Condition: Brand New In Box (BNIB)
Diameter: 42mm
Material: ceramic and lacquered

Posted at

May 26, 2026, 3:35 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 43mm -Like New

Longines - L3.782.4.56.6 · $1,180

This Longines Hydroconquest is a 43mm watch with a black dial, purchased new in April and still in fantastic condition.

Condition: Like New
Case size: 43mm
Lug to lug length: 53
Thickness: 11.90mm

Posted at

May 25, 2026, 6:20 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 41mm - Black Dial

Longines - L3.781.4.56.6 · $975

A Longines Hydroconquest 41mm Automatic watch with a black dial, stainless steel case, and ceramic bezel.

Condition: Good condition, minor scratches/scuffs in sapphire and minimal wear marks on bracelet and clasp
Case size: 41mm diameter
Bezel material: stainless steel and ceramic
Bracelet type: original bracelet (and links)

Posted at

May 24, 2026, 3:31 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,750

Longines - L3.783.4 · $1,750

The Longines Hydroconquest Chronograph 41 is a high-performance Swiss diver's watch featuring a blue ceramic bezel and screw-down crown, powered by the L688.2 column-wheel chronograph movement with a 54-hour power reserve.

Condition: Very good with minor usage marks
Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
Case size: 41mm diameter
Thickness: 15.6mm

Posted at

May 24, 2026, 12:47 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 43mm

Longines - L3.782.4.56.6 · $1,240

The watch is a Longines Hydroconquest model L3.782.4.56.6 with a black dial and a 43mm case size.

Condition: Brand new with minor use (about a month)
Case size: 43mm diameter
Lug to lug length: 53mm
Thickness: 11.90mm

Posted at

May 22, 2026, 4:14 PM

Active

View listing on r/WatchExchange

(brand new) Longines HydroConquest 39mm - $1700 shipped

Longines - HydroConquest · $1,700

This brand new Longines HydroConquest features a 39mm stainless steel case with black dial and ceramic bezel insert, along with a date display at the 3 o'clock position.

Condition: Unworn
Case material: stainless steel
Bracelet material: stainless steel
Water resistance: 300m

Posted at

May 21, 2026, 8:02 PM

Active

View listing on r/WatchExchange