Longines HydroConquest Hydroconquest Chronograph L688

Reference L3.696.4.59.2

About this watch

The Longines HydroConquest Chronograph L688 is a luxury watch that embodies the perfect blend of functionality and style. Since its launch in 2013, this remarkable timepiece has carved a niche for itself among watch enthusiasts. At the heart of the L688 lies the Longines caliber L688.2, an automatic movement with a 54-hour power reserve and 28,800 vibrations per hour. The stainless steel case provides durability and elegance, while the rotating bezel is designed for divers with a 0-60 scale. The sapphire crystal offers scratch-resistance, ensuring your watch remains pristine even after years of use. One of its standout features is the chronograph function, operated via pushers on the side of the watch, perfect for timing various activities. With an impressive water resistance of 300 meters, this watch can handle both diving adventures and everyday wear with ease.

Buy Now on Jomashop

This is an affiliate link

Key Features

Automatic movement (Longines caliber L688.2)
54-hour power reserve
Stainless steel case with rotating bezel
Scratch-resistant sapphire crystal
Chronograph function with column wheel mechanism
300-meter water resistance
41mm diameter stainless steel bracelet

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Chronograph L688

Reference

L3.696.4.59.2

Movement

l688-2

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel

Case

Stainless Steel 41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

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

Longines Hydroconquest GMT 41mm Sunray Blue

Longines - 41mm Longines Hydroconquest GMT · $1,775

A Longines Hydroconquest GMT with a Sunray blue dial and ceramic bezel in a beautiful pre-owned condition.

Condition: Very nice pre-owned condition, some minor hairlines on the bracelet/clasp
Diameter: 41mm
Bezel material: ceramic

Posted at

Jun 13, 2025, 8:34 AM

Active

View listing on r/WatchExchange

Longines HydroConquest 39mm Ceramic Bezel (Like New. 5 Years of Factory Warranty)

Longines - L37804.96.6 · $1,300

A Longines HydroConquest 39mm watch with a ceramic bezel, purchased from an authorized dealer in Florence, Italy and barely worn.

Condition: Like new
Warranty: 5 years remaining
Case Size: 39mm

Posted at

Jun 12, 2025, 3:35 PM

Active

View listing on r/WatchExchange

REDUCED Longines HydroConquest 41mm Blue Automatic

Longines - HydroConquest · £300.003

The Longines HydroConquest is a blue automatic watch from 2024, purchased brand new with all original box and papers. It features the newest movement, keeping excellent time.

Condition: nearly new
Movement: ETA C07.621
Water Resistance: 300m

Posted at

Jun 8, 2025, 7:04 PM

Active

View listing on WatchUseek