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.
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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 ALL CERAMIC L3.784.4

LONGINES HYDROCONQUEST ALL CERAMIC L3.784.4

Longines - L3.784.4 · $2,150.002
A black ZrO2 dial Longines HydroConquest All Ceramic watch with a ceramic case and bezel, 43mm in diameter, water resistant to 300m.

  • Condition: MINT
  • Case material: ceramic
  • Diameter: 43mm
  • Water resistance: 300m depth rating
Posted at
Jun 7, 2025, 2:44 PM
Active
FSO: Longines Hydroconquest GMT Blue 99%

FSO: Longines Hydroconquest GMT Blue 99%

Longines - Hydroconquest GMT · $1,700.002
The Longines Hydroconquest GMT is a high-end watch with a gorgeous blue dial and incredible tapering bracelet. It features a 41mm x 49.5 x 12.9 mm sapphire case with AR coating and a L844 movement. The watch has a 72-hour power reserve and a traveler style GMT function.

  • Condition: like-new, near flawless
  • Case size: 41mm
  • Bracelet type: tapering
  • Movement: L844 (25.2 bph)
Posted at
Jun 6, 2025, 4:06 PM
Active
Longines Hydroconquest GMT

Longines Hydroconquest GMT

Longines - L844 · $1,600.002
A Longines Hydroconquest GMT with a blue dial, featuring a 41mm case and traveler-style GMT function. The watch has a sapphire crystal and an L844 movement, and is accompanied by its original boxes, warranty card, and all bracelet links.

  • Condition: like-new, near flawless
  • Case Size: 41mm
  • Movement Type: L844
Posted at
Jun 6, 2025, 4:06 PM
Active
Longines Hydroconquest GMT FSOT

Longines Hydroconquest GMT FSOT

Longines - L844 · $1,600.002
A Longines Hydroconquest GMT with a blue dial and 41mm x 49.5 x 12.9mm dimensions, featuring a traveler-style GMT function and a tapering bracelet.

  • Condition: like-new, near flawless
  • Movement: L844
  • Bph: 25.2
Posted at
Jun 6, 2025, 4:06 PM
Active
[WTS] 2023 Longines HydroConquest XXII Commonweath Games LE L3.781.4.59.6 Full Set

2023 Longines HydroConquest XXII Commonweath Games LE L3.781.4.59.6 Full Set

Longines - L3.781.4.59.6 · $1,800
This Longines HydroConquest XXII Commonwealth Games LE features a 41mm steel case with a black and multi-color rotating dive bezel, a black dial, and a stainless steel bracelet. It is powered by an automatic mechanical movement.

  • Condition: Very nice preowned condition with some light scratches on the case, bracelet and buckle.
  • Case material: Steel
  • Bezel dimensions: 41mm diameter
  • Dial color: Black
Posted at
Jun 5, 2025, 6:52 PM
Active
Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines - L3.781.4.06.9 · $1,095
This Longines HydroConquest is a steel diver's watch with an olive green matte dial and a unidirectional rotating ceramic bezel. The stainless steel case measures 41mm in diameter and has a water resistance of up to 300 meters.

  • Condition: Excellent Condition
  • Case Diameter: 41mm
  • Thickness: 11.9mm
  • Bezel Type: Unidirectional rotating Green Ceramic
Posted at
Feb 5, 2025, 2:47 AM
Active