Longines Conquest Conquest Chronograph

Reference L3.678.4.56.6

Longines Conquest Chronograph

About this watch

The Longines Conquest Chronograph is a masterpiece of luxury watchmaking, combining elegance with precision. Its sleek design, adorned with stick and dot indexes, provides a clean, modern look. The chronograph sub-dials are strategically placed for functionality without overwhelming the design, striking a perfect balance between style and utility. At its core lies the Longines caliber L667, an automatic movement based on the renowned ETA 7750, boasting 25 jewels and a power reserve of 42 hours. This marvel of engineering ensures precision timekeeping and reliability, making it suitable for both casual wear and formal occasions. The watch's durable materials and water resistance rating of 50 meters make it perfect for everyday use, while its comfortable fit and secure stainless steel bracelet ensure an all-day wear experience.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Longines caliber L667 (ETA 7750 base)
  • Sapphire crystal glass
  • Stainless Steel case material
  • Water Resistance: 50.00 m

Specifications

Brand
Longines
Family
Conquest
Model
Conquest Chronograph
Reference
L3.678.4.56.6
Movement
l667
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Stainless Steel 41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[WTS] Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700

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

Longines - L3.776.4, L3.741.4 · $600
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
View listing on r/WatchExchange
[WTS] Longines HydroConquest 41 – $975

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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[WTS] New Longines HydroConquest 42mm

New Longines HydroConquest 42mm

Longines - HydroConquest 42mm · $2,050
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
View listing on r/WatchExchange
[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
View listing on r/WatchExchange