Longines HydroConquest HydroConquest 41 Automatic Stainless Steel - Yellow Gold / Black / Rubber

Reference L3.781.3.56.9

About this watch

The Longines HydroConquest 41 Automatic is a masterpiece of watchmaking, blending high performance with luxury aesthetics. This exceptional timepiece boasts a striking combination of yellow gold, black, and rubber, creating a bold yet sophisticated statement piece. At the heart of this watch lies the reliable Longines caliber L888.5, an automatic movement known for its precision and durability. With a 64-hour power reserve, you can trust this watch to keep ticking even when it's not on your wrist. The HydroConquest is designed for those who appreciate both form and function, featuring a scratch-resistant sapphire glass and a water resistance of 300 meters. Whether you're diving into the ocean or simply embracing life's moments, this watch is the perfect companion. Its versatile design effortlessly transitions from a day at the office to a night out, making it an ideal accessory for any occasion.
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Key Features

  • Automatic movement with 64-hour power reserve
  • Scratch-resistant sapphire glass
  • 300-meter water resistance
  • PVD gold coating for luxurious feel
  • Ceramic and stainless steel materials for durability
  • Rotating bezel for precise timing underwater

Specifications

Brand
Longines
Family
HydroConquest
Model
HydroConquest 41 Automatic Stainless Steel - Yellow Gold / Black / Rubber
Reference
L3.781.3.56.9
Movement
l888-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer
Case
41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest 44mm Black Dial Automatic

Longines HydroConquest 44mm Black Dial Automatic

Classic everyday dive watch with a clean black dial, automatic movement and 300m water resistance, perfect for daily wear.

  • Condition: Good overall
  • Case size: 44mm
  • Movement type: Automatic
  • Bezel material: Aluminum
Posted at
May 22, 2026, 6:21 PM
Active
[WTS] Longines Hydroconquest 43mm

Longines Hydroconquest 43mm

Longines - L3.782.4.56.6 · $1,240
The watch is a Longines Hydroconquest model L3.782.4.56.6 with a black dial and a 43mm case size.

  • Condition: Brand new with minor use (about a month)
  • Case size: 43mm diameter
  • Lug to lug length: 53mm
  • Thickness: 11.90mm
Posted at
May 22, 2026, 4:14 PM
Active
[WTS] (brand new) Longines HydroConquest 39mm - $1700 shipped

(brand new) Longines HydroConquest 39mm - $1700 shipped

Longines - HydroConquest · $1,700
This brand new Longines HydroConquest features a 39mm stainless steel case with black dial and ceramic bezel insert, along with a date display at the 3 o'clock position.

  • Condition: Unworn
  • Case material: stainless steel
  • Bracelet material: stainless steel
  • Water resistance: 300m
Posted at
May 21, 2026, 8:02 PM
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[WTS] Longines hydroconquest 39 mm green

Longines hydroconquest 39 mm green

This Longines HydroConquest is a recent purchase from a US authorized dealer, still in its original packaging and with all papers.

  • Condition: great condition
  • Bracelet condition: has a small ding on the clasp
  • Box and paper status: all included
  • Additional strap type: aftermarket rubber
Posted at
May 21, 2026, 9:48 AM
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[WTS] Longines HydroConquest 39mm Blue – Full Set – Excellent Condition

Longines HydroConquest 39mm Blue – Full Set – Excellent Condition

This Longines HydroConquest is a 39mm watch with an automatic movement and ceramic bezel, featuring a blue dial and bezel.

  • Condition: Excellent Condition
  • Case size: 39mm diameter
Posted at
May 21, 2026, 4:05 AM
Active
[WTS] RARE CONFIGURATION Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Worn | Full Kit | Warranty Card 5/8/26

RARE CONFIGURATION Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Worn | Full Kit | Warranty Card 5/8/26

Longines - L3.788.4.06.6 · $2,285
This is a rare configuration Longines HydroConquest 42mm watch with a green ceramic bezel and a green lacquered dial. It features an automatic movement, 300m water resistance, and a full kit including the original box, papers, and warranty card.

  • Condition: never worn
  • Bracelet: upgraded Longines mesh style bracelet
  • Movement: Calibre L888.5, automatic, silicon balance spring, 72hr power reserve
  • Water Resistance: 300m / 30 bar
Posted at
May 20, 2026, 3:53 PM
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[WTS] Longines Hydroconquest 39mm black bezel - 2026 release

Longines Hydroconquest 39mm black bezel - 2026 release

A 39mm black bezel Longines Hydroconquest with a black dial, sold in full kit and unregistered for warranty purposes.

  • Condition: Like-new
  • Case diameter: 39mm
  • Condition notes: No scratches anywhere on the case, crystal or bracelet
Posted at
May 18, 2026, 4:29 PM
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[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

A Longines Hydroconquest quartz two-tone diver watch, featuring a black dial and 41mm case size.

  • Condition: Pre-owned with light scratches
  • Case size: 41mm
  • Material: two tone
Posted at
May 17, 2026, 9:13 AM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

This Longines Hydroconquest is a fun and capable diver that comes in the 41mm version, featuring a black dial and quartz movement.

  • Condition: pre-owned with light scratches
  • Case Size: 41mm
  • Movement Type: quartz
Posted at
May 16, 2026, 7:05 PM
Active