Longines HydroConquest Hydroconquest 39 Quartz Blue

Reference L3.647.4.96.6

About this watch

The Longines Hydroconquest 39 Quartz Blue is an exceptional timepiece that embodies the spirit of adventure. Its striking blue dial and stainless steel case make it a perfect blend of elegance and functionality. The watch features a clean, analog display with luminous hands, ensuring easy readability even in low-light conditions. With a water resistance of up to 300 meters, this watch is built for action, encouraging you to explore the world beneath the waves or on land. Its reliable quartz movement, based on the ETA 955.412, provides hassle-free timekeeping and a power reserve of over 26,000 hours. The Hydroconquest's robust design and high-quality craftsmanship make it an excellent addition to any watch collection. Whether you're a seasoned diver or someone who appreciates high-quality timepieces, this watch is sure to impress.

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Key Features

Quartz Movement with Power Reserve of over 26,000 hours
Water Resistance up to 300 meters
Stainless Steel Case with Rotating Dive Bezel

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest 39 Quartz Blue

Reference

L3.647.4.96.6

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950

Longines - L3.790.4.56.6 · $1,950

This Longines HydroConquest GMT Black is a modern dive watch with excellent everyday wearability, offering both tool watch functionality and travel convenience.

Condition: Excellent pre-owned
Case size: 41mm diameter
Water resistance: 300m

Posted at

Apr 14, 2026, 9:45 PM

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(Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB

Longines - Hydroconquest 42 · $2,200

This newly released Longines Hydroconquest is a large watch with exceptional fit and finish. It comes in its original packaging with a full kit and warranty.

Condition: LNIB (Like New In Box)
Case size: 42mm
Water resistance: not specified

Posted at

Apr 13, 2026, 2:48 PM

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Longines Hydroconquest 43mm Full Black Ceramic Ref L3.784.4.56.9 MINT Full Kit $2500

Longines - L3.784.4.56.9 · $2,500

This Longines HydroConquest features a unique full black ceramic aesthetic with a sleek and stealthy design, while maintaining refined and versatile qualities. The watch boasts excellent scratch resistance, legible dial, and comfortable daily wear.

Condition: MINT
Case diameter: 43mm
Thickness: 13mm
Lug-to-lug length: 56mm

Posted at

Apr 10, 2026, 8:26 PM

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Longines Hydroconquest GMT | 41mm | Sunburst Brown | Excellent Condition

Longines - Hydroconquest GMT · $1,350

This Longines Hydroconquest GMT is a refresh of the well-loved hydroconquest line range, featuring a new quick-adjust bracelet and updated bezel with brown ceramic insert. The sunray dial looks incredible in all lighting conditions, especially when exposed to sunlight.

Condition: Excellent
Case size: 41mm diameter
Lug to lug: 49.2mm
Thickness: 12.8mm

Posted at

Apr 8, 2026, 5:34 PM

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Longines HydroConquest 2 tone Green Dial 2024 $1320

Longines - HydroConquest 2 tone Green Dial 2024 · $1,320

Image: https://imgur.com/a/bPjxHRP

Posted at

Apr 7, 2026, 9:36 AM

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Longines Hydroconquest GMT 41mm

Longines - Hydroconquest GMT 41mm · $1,850

Beautiful Longines Hydroconquest GMT with a 41mm case, included in the sale are extra links, warranty card, and original packaging.

Condition: very good condition
Water Resistance: not specified
Warranty Years: 2

Posted at

Apr 2, 2026, 5:00 PM

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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

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