Longines HydroConquest Hydroconquest Automatic 39

Reference L3.648.4.76.6

About this watch

The Longines Hydroconquest Automatic 39 is an exemplary timepiece that seamlessly blends elegance and ruggedness. Its stunning silver stainless steel case exudes sophistication, making it suitable for both formal and casual occasions. The rotating bezel adds a sporty flair to the watch, while the clean and minimalist dial features stick and dot indexes for excellent readability. At the core of the Hydroconquest is the reliable Longines caliber L633.5 movement, which winds itself as you wear it. With a water resistance of 300 meters, this watch is built for serious underwater adventures. Its comfortable fit and sleek design make it an ideal choice for daily wear, whether you're exploring the ocean depths or simply enjoying a night out.

Buy Now on Jomashop

This is an affiliate link

Key Features

Longines caliber L633.5 movement with 25 jewels
Stainless steel case with rotating bezel and sapphire glass
300 meters water resistance for serious underwater adventures
Reliable automatic winding for precise timekeeping
39 mm diameter with comfortable fit for daily wear
Sleek design with silver color and stick/dot indexes

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Automatic 39

Reference

L3.648.4.76.6

Movement

l633-5

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

300

Current Listings

Pre-Owned Longines Hydroconquest GMT L3.890.4.56.6

Longines - L3.890.4.56.6 · $2,099.002

Pre-owned Longines Hydroconquest GMT watch in 43mm stainless steel case with automatic movement, black dial, and 300m water resistance.

Condition: 95% condition, faint marks on the sides and back of the case; 91% condition, slight marks on the links and clasp for the bracelet
Case size: 43mm diameter
Water resistance: 300m depth rating
Material: Stainless Steel

Posted at

Jun 20, 2025, 9:54 PM

Active

View listing on WatchUseek

Longines Hydroconquest L3.781.3.58.9, Rose Gold & Rubber Strap

Longines - L3.781.3.58.9 · $1,199

This Longines Hydroconquest features a silver-tone stainless steel case with a black rubber strap, uni-directional rotating black ceramic bezel, and a black dial with rose gold-tone hands and index hour markers.

Condition: Gently used with minor wear and tear, polishable
Case size: 43mm diameter
Water resistance: 300m / 1000ft depth rating
Movement: Longines Calibre L888 Automatic movement

Posted at

Jun 16, 2025, 2:47 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest GMT, Excellent Condition, Box and papers

Longines - L3.790.4.56.6 · $1,850

This Longines Hydroconquest GMT features a stainless steel case with black dial and ceramic bezel, housed on a stainless-steel bracelet. It has a screw-down back and crown, with a unidirectional notched bezel in black ceramic.

Condition: Excellent condition
Case size: 41mm diameter

Posted at

Jun 16, 2025, 1:42 PM

Active

View listing on r/WatchExchange

Longines Hydroconquest Automatic

Longines - Hydroconquest automatic · $700.007

The Longines Hydroconquest is a comfortable and reliable automatic watch. It features a 41mm case size with a blue aluminum bezel and dial.

Condition: Pre-owned, has been worn
Case Size: 41mm
Bezel Fade: yes, but lines up properly
Wrist Size Fit: 7 7/8 inch wrist

Posted at

Jun 14, 2025, 3:19 PM

Active

View listing on WatchUseek

>>REDUCED<< LONGINES HYDROCONQUEST ALL CERAMIC L3.784.4

Longines - L3.784.4 · $1,995.002

This Longines HydroConquest All Ceramic features a ceramic case and bezel, black ZrO2 dial, and is water resistant to 300m. The watch has a 43mm diameter and comes with a rubber strap and deployant clasp.

Condition: MINT
Case material: ceramic
Diameter: 43mm
Water resistance: 300m

Posted at

Jun 13, 2025, 4:41 PM

Active

View listing on WatchUseek