Longines Conquest Conquest Automatic 29.5 Ceramic Diamond

Reference L3.299.0.57.7

About this watch

The Longines L3.299.0.57.7 Conquest Automatic 29.5 Ceramic Diamond is a masterpiece of luxury watchmaking, boasting an exquisite design that combines style with functionality. The black ceramic case paired with gem-set indexes exudes luxury and sophistication, while the sleek black dial adorned with gem-set indexes sparkles under light. At its heart lies the reliable Longines caliber L595 movement, ensuring accuracy and precision. With a water resistance rating of 50 meters and sapphire glass protection, this watch is built to last. Its elegant design, combined with luxurious materials, makes it a versatile accessory that can elevate any outfit.
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Key Features

  • 29.5mm round ceramic case
  • Longines caliber L595 automatic movement
  • Water resistance: 50 meters
  • Sapphire glass crystal
  • Adjustable stainless steel bracelet
  • Date display and hours, minutes, seconds hands

Specifications

Brand
Longines
Family
Conquest
Model
Conquest Automatic 29.5 Ceramic Diamond
Reference
L3.299.0.57.7
Movement
l595
Movement Features
  • Hours, Minutes, Seconds
  • Date
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New

Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New

Longines - 2026 · $4,200
The listing is for a Longines HydroConquest 42mm watch with a blue ceramic bezel, accompanied by a full kit and a 2026 card.

  • Condition: Like new
  • Material: Blue Ceramic Bezel
  • Size: 42mm
Posted at
Apr 27, 2026, 1:18 PM
Active
[WTS] Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition

Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition

This is a brand new, unworn Longines HydroConquest limited edition watch from the 2026 Commonwealth Games collection. It features a 39mm case and comes with various accessories.

  • Condition: Brand New Unworn
  • Case size: 39mm
  • Limited edition status: One of 2026
Posted at
Apr 27, 2026, 11:58 AM
Active
[WTS][US] Longines Conquest - Blue - 41mm - L3.830.4.92.6 - 2026 NEW - Full Set w/ 5-Year Warranty

[US] Longines Conquest - Blue - 41mm - L3.830.4.92.6 - 2026 NEW - Full Set w/ 5-Year Warranty

Longines - L3.830.4.92.6 · $1,950
A 2026 Longines Conquest in blue, with a 41mm case size and a full set of accessories including a 5-year warranty.

  • Condition: New, unworn
  • Case Size: 41mm diameter
Posted at
Apr 27, 2026, 8:32 AM
Active
[WTS] Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

This Longines Hydroconquest features a 41mm ceramic case, black dial, and is sized for an approximate 7.4" wrist.

  • Condition: Pre-owned with scratches on the case and bracelet
  • Case material: ceramic
  • Bracelet size: 7.4in diameter
  • Warranty: no warranty included
Posted at
Apr 26, 2026, 7:58 PM
Active
[WTS] Longines Conquest Chronograph 42mm – Blue Ceramic Bezel – Ref. L3.835.4.98 – Full Kit

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

Longines - L3.835.4.98 · $2,499
This Longines Conquest Chronograph features a blue ceramic bezel and measures 42mm in diameter.

  • Condition: Excellent condition
  • Case Size: 42mm diameter
  • Box: yes
  • Instruction Manual: yes
Posted at
Apr 26, 2026, 6:35 PM
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[WTS] Longines HydroConquest L3.788.4.06 — 42mm Ceramic Bezel — Full Kit — 11 Days Old — $1999 Shipped 🔥

Longines HydroConquest L3.788.4.06 — 42mm Ceramic Bezel — Full Kit — 11 Days Old — $1999 Shipped 🔥

Longines - L3.788.4.06 · $1,999
This Longines HydroConquest features a modern configuration with a ceramic bezel and is practically new at just 11 days old.

  • Condition: Excellent overall, only very light hairlines present
  • Age: 11 days
  • Dimensions: 42mm diameter
Posted at
Apr 25, 2026, 8:50 PM
Active
[WTS] PRICED TO FLY Longines Conquest 🏞️ ‘Sunray Green’ L3.830.4.02.6 JUST $1350 Shipped

PRICED TO FLY Longines Conquest 🏞️ ‘Sunray Green’ L3.830.4.02.6 JUST $1350 Shipped

Longines - L3.830.4.02.6 · $1,350
This is a super clean, modern everyday watch with Longines' great build quality, gorgeous sunray green dial, and a really versatile look on bracelet.

  • Condition: like-new with minor scratches
  • Case size: 41mm
  • Bracelet type: bracelet
  • Year sold: 2025
Posted at
Apr 25, 2026, 2:30 PM
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[WTS] Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700

Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700

Two Longines watches for sale, the Conquest L3.776.4 and the HydroConquest L3.741.4.

  • Condition: Very good
  • Case size: 39 mm
  • Year purchased: 2025
  • Clasp wear: minor wear on clasp from being stored at work desk
Posted at
Apr 25, 2026, 1:54 PM
Active
[WTS] Longines HydroConquest 41 – $975

Longines HydroConquest 41 – $975

This Longines HydroConquest 41 features a 41mm case, minimal wear, and comes with its box, papers, hangtag, and warranty card.

  • Condition: Very Good Pre-owned Condition
  • Case Size: 41mm diameter
  • Bracelet Condition: hairlines throughout polished surfaces, some desk wear
Posted at
Apr 25, 2026, 10:32 AM
Active