Longines Conquest Conquest Automatic 39 Ceramic

Reference L3.655.4.56.6

About this watch

The Longines Conquest Automatic 39 Ceramic is a masterpiece of watchmaking, blending elegance with functionality in a sleek black ceramic case. This round timepiece, measuring 39 mm in diameter, boasts a perfect balance for both men and women, with a lug width of 19 mm for versatility. The black dial features mixed indexes and luminous stick hands, ensuring visibility even in low light. Protected by sapphire crystal glass, this watch is resistant to scratches and maintains its pristine appearance over time. At the heart of the Conquest Automatic 39 Ceramic lies the Longines caliber L633.5, an automatic movement based on the renowned ETA 2824-2, celebrated for its reliability and precision. With a water resistance of up to 300 meters, this watch is built for adventure, suitable for recreational diving and other water-related activities. Its stainless steel bracelet feels sturdy yet comfortable against the skin, making it perfect for daily wear. This timepiece is not just about telling time; it's a statement piece that can elevate any outfit, embodying the perfect blend of style, functionality, and reliability.
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Key Features

  • Automatic Movement (Longines Caliber L633.5)
  • Water Resistance up to 300 meters
  • Sapphire Crystal Glass
  • Black Ceramic Case with Stainless Steel Bracelet
  • 39mm Round Diameter, 19mm Lug Width
  • Mixed Indexes and Luminous Stick Hands on Black Dial
  • 38 hours Power Reserve

Specifications

Brand
Longines
Family
Conquest
Model
Conquest Automatic 39 Ceramic
Reference
L3.655.4.56.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
39mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[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
Active
[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
[WTS] Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6

Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6

Longines - L3.788.4.98.6 ¡ $2,200
The Longines Hydroconquest Exclusive features a 42mm case with a beautiful frosted blue dial and comes in brand new condition.

  • Condition: Brand new, unworn
  • Case size: 42mm
Posted at
Apr 24, 2026, 6:24 PM
Active
[WTS] Longines Conquest L3.835.4.72.6

Longines Conquest L3.835.4.72.6

Longines - L3.835.4.72.6 ¡ $2,250
A Longines Conquest with a panda dial is for sale in excellent condition, with minimal signs of wear and comes with the complete set.

  • Condition: Excellent condition, almost no signs of wear
  • Payment Methods Accepted: multiple payment methods including crypto, but not PayPal
  • Additional Features: comes with the complete set
  • Meets Requirements: true
Posted at
Apr 24, 2026, 1:34 PM
Active
[WTS] 2025 Longines Conquest ‘Sunray Green’ 41mm L3.830.4.02.6 $1400 Shipped

2025 Longines Conquest ‘Sunray Green’ 41mm L3.830.4.02.6 $1400 Shipped

Longines - L3.830.4.02.6 ¡ $1,400
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: basically new, minor scratches
  • Case size: 41mm diameter
  • Bracelet type: bracelet
Posted at
Apr 23, 2026, 6:24 PM
Active
[WTS] New Longines HydroConquest 42mm

New Longines HydroConquest 42mm

A new Longines HydroConquest in the 42mm size, with a mesh band and box and papers included.

  • Condition: New
  • Case Size: 42mm
  • Band Type: mesh
Posted at
Apr 23, 2026, 8:54 AM
Active
[WTS] Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,850

Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,850

Longines - L3.783.4 ¡ $1,850
The Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch that features a 41mm case, blue ceramic bezel, and screw-down crown. It houses the calibre L688.2, a column-wheel chronograph movement with a 54-hour power reserve.

  • Condition: Very good with minor usage marks
  • Case Size: 41 x 51mm stainless steel case with a thickness of 15.6mm and a lug width of 21mm
  • Movement: Longines L688.2, automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
  • Water Resistance: 300 (30 ATM)
Posted at
Apr 22, 2026, 3:35 PM
Active
[WTS] 2005 Longines Conquest Heritage L1.611.4 gilt dial with box and card!! Comes with genuine Longines band and buckle - $990 shipped!!

2005 Longines Conquest Heritage L1.611.4 gilt dial with box and card!! Comes with genuine Longines band and buckle - $990 shipped!!

Longines - L16114 ¡ $990
This is a vintage Longines Conquest Heritage with a gilt dial and automatic winding movement. It features a stainless steel case, genuine leather strap, and comes with its original box and card.

  • Condition: 9/10
  • Movement: Cal. L633.5 automatic (ETA 2824-2 base)
  • Case size: 35mm
  • Condition details: Beautiful clean gilt glossy dial
Posted at
Apr 22, 2026, 10:58 AM
Active