Longines HydroConquest Hydroconquest 39 Quartz Silver

Reference L3.647.4.76.6

About this watch

The Longines Hydroconquest 39 Quartz Silver is a head-turning timepiece that perfectly blends style with functionality. This Swiss-made watch is designed for both underwater adventures and everyday wear, thanks to its sleek design and high-performance features. The silver dial is elegantly complemented by stick and dot indexes, giving it a modern yet timeless look. The 39mm round case is made from durable stainless steel, which adds to its sturdiness while enhancing its aesthetic appeal. The watch is equipped with sapphire glass, known for its excellent scratch resistance, ensuring your watch remains clear and pristine even after years of wear. At the heart of the Hydroconquest 39 is the Longines caliber L263 quartz movement, based on the reliable ETA 955.412, renowned for its precision and longevity. This quartz movement offers several benefits over its mechanical counterparts, including accuracy and reduced maintenance. The watch features hours, minutes, seconds, and a date function, making it a practical choice for daily use. With a water resistance of 300 meters, you can take this watch diving without worrying about its performance under pressure. The rotating bezel allows for precise timing, a crucial feature for underwater adventures. Whether you're checking the tide times or keeping track of appointments, this watch has you covered. Comfort is key when it comes to any watch, and the Hydroconquest does not disappoint, featuring a snug fit that feels secure without being overly tight. The stainless steel bracelet is designed for comfort and durability, ensuring it feels good on your wrist throughout the day. One of the best aspects of this watch is its versatility, adapting seamlessly from casual to formal settings.
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Key Features

  • 39mm round case made from durable stainless steel
  • Sapphire glass with excellent scratch resistance
  • Longines caliber L263 quartz movement for accuracy and longevity
  • 300m water resistance for diving and underwater adventures
  • Rotating bezel for precise timing
  • Stainless steel bracelet for comfort and durability

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest 39 Quartz Silver
Reference
L3.647.4.76.6
Movement
l263
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 39mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest GMT 41mm L3.790.4

Longines HydroConquest GMT 41mm L3.790.4

Longines - L3.790.4 · $1,799
This Longines HydroConquest GMT is a 41mm watch featuring a 6.5 inch bracelet and an aftermarket rubber strap with deployant.

  • Bracelet Length: 6.5 inches
  • Case Size: 41mm
Posted at
Feb 19, 2026, 5:35 PM
Active
[WTS] Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines HydroConquest 43mm Automatic – Black Dial – Full Kit – $1,095

Longines - L3.782.4 · $1,095
This Longines HydroConquest automatic watch features a black dial and 43mm case size, which provides a strong wrist presence.

  • Condition: very good
  • Case size: 43mm diameter
  • Case wear: normal wear consistent with careful use
Posted at
Feb 18, 2026, 4:40 PM
Active
[WTS] Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

A green ceramic automatic watch from Longines, part of the Hydroconquest series, featuring a Swiss movement with 72-hour power reserve.

  • Condition: Used with signs of wear
  • Case diameter: 41 mm
  • Water resistance: 300m / 30 bar
  • Movement: Longines Calibre L888 series with 72hr power reserve
Posted at
Feb 16, 2026, 4:12 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