Longines Conquest Conquest 29.5 Automatic Double Row Diamond

Reference L3.180.0.87.6

About this watch

The Longines Conquest 29.5 Automatic Double Row Diamond is more than just a timepiece; it’s a celebration of craftsmanship, style, and enduring elegance. This stunning luxury watch features an exquisite mother of pearl dial, complemented by a double row of diamonds that add a luxurious touch without being overly ostentatious. The round shape ensures it sits well on the wrist, making it suitable for any occasion—whether you're at a formal dinner or a casual brunch. Powered by the Longines caliber L595, an automatic movement that boasts reliability and precision, this watch ensures that you’re never late for your next big meeting or event. With a power reserve of 40 hours and a frequency of 28,800 vibrations per hour, it's perfect for those who value practicality and accuracy. The date function is seamlessly integrated into the design, making it easy to keep track of your schedule without cluttering the aesthetics of the watch. One of the standout features of this timepiece is its durability, with a water resistance of 50 meters and scratch-resistant sapphire glass. This watch transitions effortlessly between styles, making it a fantastic investment for any wardrobe. Whether you’re a watch aficionado or a casual wearer, the consensus is clear: this watch delivers.
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Key Features

  • Longines caliber L595 automatic movement
  • Mother of pearl dial with double row of diamonds
  • Sapphire glass with scratch-resistant properties
  • Water resistance up to 50 meters
  • Date display and stick hands for clear time-telling
  • 40-hour power reserve and 28,800 vibrations per hour
  • Stainless steel case with comfortable 29.5mm diameter

Specifications

Brand
Longines
Family
Conquest
Model
Conquest 29.5 Automatic Double Row Diamond
Reference
L3.180.0.87.6
Movement
l595
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 29.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set

2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set

Longines - L3.779.4.56.6 · $1,900
The newly redesigned Longines HydroConquest in the highly sought-after 39mm size, featuring a refined dial and upgraded bracelet.

  • Condition: Excellent Used Condition
  • Size: 39mm diameter
  • Thickness: ~11.9mm
  • Lug-to-lug length: 47mm
Posted at
May 7, 2026, 8:43 PM
Active
[WTS] Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.

Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.

Longines - L3.782.4.56.6 · $1,350
A Longines Hydroconquest 43mm watch on a black dial with a stainless steel bracelet, now on an Ali Rubber strap.

  • Condition: Mint condition, worn approximately 5 times
  • Case size: 43mm diameter
  • Lug to lug: 53mm
  • Thickness: 11.90mm
Posted at
May 7, 2026, 4:43 AM
Active
[WTS] Longines "Conquest" Swiss-Made 1970s/Early '80s Integrated Solid Link Bracelet, Calibre L.746.2 Ref.4384 (ETA 954.111) $435 (details/description in the comments)

Longines "Conquest" Swiss-Made 1970s/Early '80s Integrated Solid Link Bracelet, Calibre L.746.2 Ref.4384 (ETA 954.111) $435 (details/description in the comments)

Longines - 4384 · $435
This vintage Swiss-made Longines 'Conquest' watch is a beautiful and refined example of an integrated steel sports watch. The dial shape is very '70s with its TV dial shape, featuring a subtle in between of grey and light brown color with a vertically brushed linen texture.

  • Condition: Great condition considering its age, only minor general wear
  • Movement: Longines calibre L.746.2 (Swiss-made ESA ETA 954.111)
  • Bracelet Type: Integrated solid link bracelet
  • Bracelet Dimensions: Accommodates up to roughly 18cm wrist size
Posted at
May 6, 2026, 9:53 PM
Active
[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 🚢

Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 🚢

This Longines Hydroconquest is a 41mm two-tone diver's watch with a quartz movement.

  • Condition: Used with light scratches
  • Size: 41mm diameter
Posted at
May 6, 2026, 9:43 PM
Active
[WTS] 2025 Longines Hydroconquest 41mm Ref: L37814056

2025 Longines Hydroconquest 41mm Ref: L37814056

Longines - L37814056 · $1,300
This listing is for a 2025 Longines Hydroconquest 41mm watch, featuring an automatic self-winding caliber L888.5, unidirectional green ceramic bezel, and 300M water resistance.

  • Condition: Like new with some minor marks on the bracelet and buckle
  • Case size: 41mm
  • Bracelet type: Stainless steel
  • Water resistance: 300m depth rating
Posted at
May 6, 2026, 8:37 PM
Active
[WTS] Longines Hydroconquest 42 mm “Green” 2026

Longines Hydroconquest 42 mm “Green” 2026

Up for sale is one of my new Longines Hydroconquest 42mm watches, I purchased several but find myself gravitating towards other models.

  • Condition: New
  • Case size: 42mm diameter
Posted at
May 6, 2026, 7:28 PM
Active
[WTS] (Longines) (2026 Hydroconquest 39mm Commonwealth) Brand New and Unworn

(Longines) (2026 Hydroconquest 39mm Commonwealth) Brand New and Unworn

Longines - L3.779.4.09.9 · $2,650
This is a Limited Edition Hydroconquest Commonwealth Games watch from Longines, purchased brand new from an authorized dealer and still under warranty.

  • Case diameter: 39mm
  • Box condition: great condition with exception of price sticker on outer box
Posted at
May 6, 2026, 5:30 PM
Active
[WTS] Longines Conquest Chronograph 42mm – Blue Ceramic Bezel – Ref. L3.835.4.98 – Full Kit - repost

Longines Conquest Chronograph 42mm – Blue Ceramic Bezel – Ref. L3.835.4.98 – Full Kit - repost

Longines - L3.835.4.98 · $2,499
This is a Longines Conquest Chronograph with a blue ceramic bezel, featuring a 42mm case size.

  • Condition: Excellent condition
  • Case size: 42mm
  • Water resistance: null
  • Box and papers: true
Posted at
May 5, 2026, 3:24 PM
Active
[WTS] Longines Conquest 38mm Sunburst Blue

Longines Conquest 38mm Sunburst Blue

This Longines Conquest is a newer generation watch with the updated design and L888 movement, featuring a blue sunray dial on a stainless steel bracelet. It has been worn sparingly and is in very good condition, still under warranty until 2029.

  • Condition: very good condition with only light wear consistent with normal use
  • Case size: 38mm
  • Thickness: ~10.9mm
  • Lug-to-lug: ~46.8mm
Posted at
May 4, 2026, 4:54 PM
Active