Longines HydroConquest Hydroconquest 39 Quartz Silver

Reference L3.647.4.76.6

About this watch

The Longines Hydroconquest 39 Quartz Silver is a head-turning timepiece that perfectly blends style with functionality. This Swiss-made watch is designed for both underwater adventures and everyday wear, thanks to its sleek design and high-performance features. The silver dial is elegantly complemented by stick and dot indexes, giving it a modern yet timeless look. The 39mm round case is made from durable stainless steel, which adds to its sturdiness while enhancing its aesthetic appeal. The watch is equipped with sapphire glass, known for its excellent scratch resistance, ensuring your watch remains clear and pristine even after years of wear. At the heart of the Hydroconquest 39 is the Longines caliber L263 quartz movement, based on the reliable ETA 955.412, renowned for its precision and longevity. This quartz movement offers several benefits over its mechanical counterparts, including accuracy and reduced maintenance. The watch features hours, minutes, seconds, and a date function, making it a practical choice for daily use. With a water resistance of 300 meters, you can take this watch diving without worrying about its performance under pressure. The rotating bezel allows for precise timing, a crucial feature for underwater adventures. Whether you're checking the tide times or keeping track of appointments, this watch has you covered. Comfort is key when it comes to any watch, and the Hydroconquest does not disappoint, featuring a snug fit that feels secure without being overly tight. The stainless steel bracelet is designed for comfort and durability, ensuring it feels good on your wrist throughout the day. One of the best aspects of this watch is its versatility, adapting seamlessly from casual to formal settings.

Buy Now on Jomashop

This is an affiliate link

Key Features

39mm round case made from durable stainless steel
Sapphire glass with excellent scratch resistance
Longines caliber L263 quartz movement for accuracy and longevity
300m water resistance for diving and underwater adventures
Rotating bezel for precise timing
Stainless steel bracelet for comfort and durability

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest 39 Quartz Silver

Reference

L3.647.4.76.6

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 41mm Black dial

Longines - L3.781.4.56 · $1,100

A Longines Hydroconquest 41mm with a black dial is being sold. The watch features an original box and bracelet, as well as two additional straps.

Condition: Very good condition, a few scuffs on the sapphire but no scratches
Case size: 41mm
Bracelets: 2
Straps: 2

Posted at

May 15, 2026, 2:06 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 39mm L3.779.4.96.6

Longines - L3.779.4.96.6 · $2,100

A Longines Hydroconquest 39mm with a frosted blue dial, this watch features a unique and stylish design.

Condition: Like new
Size: 39mm diameter

Posted at

May 14, 2026, 10:43 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 39mm

Longines - HydroConquest 39mm · $2,000

A Longines Hydroconquest diver's watch in excellent condition, featuring a 2026 movement and virtually no signs of wear.

Condition: 9.6/10 - extremely clean example
Movement: 2026
Case condition: virtually no signs of wear
Box included: true

Posted at

May 14, 2026, 10:36 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint

Longines - L3.779.4.09.9 · $2,950

A limited edition Longines Hydroconquest, purchased just a week ago and still under warranty.

Condition: Mint
Case Size: 39mm
Limited Edition Quantity: 2026 pieces
Warranty Length: five years

Posted at

May 12, 2026, 4:37 PM

Active

View listing on r/WatchExchange

Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750

Longines - HydroConquest 39mm · $750

This Longines HydroConquest is an excellent daily-wear diver with great proportions and comfortable sizing, featuring a black dial and ceramic bezel. The watch is running well and keeping great time.

Condition: Excellent daily-wear, shows wear from use on the bracelet
Case Size: 39mm diameter
Bracelet Type: black ceramic bezel + bracelet + WOE NATO

Posted at

May 12, 2026, 4:18 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 🚢

Longines - L3.740.3.56.7 · $600

A quartz-powered diver's watch from Longines, featuring a black dial and two-tone yellow gold PVD finish on the 41mm case.

Condition: Good (light scratches)
Case size: 41mm
Material: two tone yellow gold PVD
Movement: quartz

Posted at

May 10, 2026, 5:48 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest 43mm (updated pictures)

Longines - L3.782.4.56.6 · $1,260

This Longines Hydroconquest 43mm features a black dial on a stainless steel bracelet and has been worn only 4-6 times since its purchase. It comes with a full set, including the box, tags, warranty cards, and is still under Jomashop's 2-year warranty.

Condition: Fantastic, worn 4-6 times
Case size: 43mm
Lug to lug: 53mm
Thickness: 11.90mm

Posted at

May 9, 2026, 4:10 PM

Active

View listing on r/WatchExchange

(brand new) Longines HydroConquest 39mm - $1800 shipped

Longines - HydroConquest · $1,800

This brand new Longines HydroConquest features a black dial, stainless steel case and bracelet, sapphire crystal with anti-reflective coating, and is powered by the L888.4 automatic movement.

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

Posted at

May 9, 2026, 1:11 PM

Active

View listing on r/WatchExchange