Longines HydroConquest Hydroconquest Quartz 39 Two Tone Blue

Reference L3.640.3.96.7

About this watch

The Longines Hydroconquest Quartz 39 Two Tone Blue is a stunning timepiece that combines Swiss craftsmanship with a chic design, making it a worthy addition to any watch enthusiast's collection. This robust watch features a rotating bezel for tracking elapsed time underwater and a stainless steel case with PVD gold coating creating a polished yet durable exterior. The blue dial exudes a sense of calm, reminiscent of the ocean's depths, while the PVD gold accents add a touch of luxury, creating a beautiful contrast. At the heart of this watch is the reliable Longines caliber L263 quartz movement, ensuring accurate timekeeping and low maintenance requirements.

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Key Features

Longines Caliber L263 Quartz Movement
Sapphire Crystal Glass for Enhanced Durability
300m Water Resistance for Diving and Swimming
Rotating 0-60 Dive Bezel for Tracking Elapsed Time
Mixed Indexes on Blue Dial for Enhanced Readability
Stainless Steel Case with PVD Gold Coating
Proprietary Hands for Unique Style

Specifications

Brand

Longines

Family

HydroConquest

Model

Hydroconquest Quartz 39 Two Tone Blue

Reference

L3.640.3.96.7

Movement

l263

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines HydroConquest Steel 44 Black Dial (Full-Set/Unpolished)

Longines - L3.841.4.56.6 · $1,000

This Longines HydroConquest Ref. L3.841.4.56.6 is a full steel diver’s watch with robust build quality and enduring style.

Condition: Full steel diver's watch in outstanding original condition with factory finish and minimal signs of wear
Case size: 44mm diameter
Bracelet length: fits wrists up to 8.5 inches (21cm)
Box and papers included: yes

Posted at

Jul 3, 2025, 5:32 PM

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Longines Hydroconquest GMT, Excellent Condition, Box and papers look

Longines - L3.790.4.56.6 · $1,850

The Longines Hydroconquest GMT features a 41mm-diameter stainless steel case with screw-down back and crown, a black ceramic bezel with luminescent capsule, and a black dial on a stainless-steel bracelet.

Condition: Excellent Condition
Case diameter: 41mm
Bezel material: black ceramic

Posted at

Jul 3, 2025, 12:50 PM

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Longines Hydroconquest GMT

Longines - L3.790.4.06.2 · $1,650

This Longines Hydroconquest GMT is a full kit, minus the original NATO strap, and comes on an OEM Hydroconquest bracelet with 10 full and 1 half links.

Condition: Pre-owned with minor wear
Case Condition: clean
Crystal Condition: clean
Bracelet Condition: minor desk rash

Posted at

Jul 2, 2025, 3:33 PM

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View listing on r/WatchExchange