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

2026 Longines Hydroconquest 39mm - Grey Bezel / Black Dial

Longines - L3-779-4-70-6 · $2,100

This 2026 Longines Hydroconquest is a 39mm grey bezel/black dial watch, purchased directly from Longines and regularly worn. It's free of major scratches or dents but has minor wear on the back of one lug.

Condition: Excellent to LNIB (like new in box)
Bracelet length: up to an 8in wrist
Bent link pin: one link pin is bent and unusable
Included accessories: all original packaging, accessories, and paperwork

Posted at

Apr 16, 2026, 3:09 PM

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Longines HydroConquest Sunray Blue- L3.790.4.96.6

Longines - L3.790.4.96.6 · $2,900

A brand new Longines HydroConquest with sunray blue dial, featuring a new box and papers.

Condition: Brand new
Box And Papers: brand new

Posted at

Apr 16, 2026, 12:11 PM

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[WTS] Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested

Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested

Longines - HydroConquest GMT · $1,700

The Longines HydroConquest GMT is a 41mm timepiece that comes as a full set including box, papers, and all original accessories. It is in completely unworn condition.

Condition: Unworn
Case Size: 41mm
Set: Full set including box, papers, and all original accessories

Posted at

Apr 16, 2026, 11:26 AM

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Longines Hydroconquest GMT 41mm Black (Nov 2024)- $2950 AUD (Sydney, Australia)

Longines - L3.826.4.53.2 · $2,950

a black Longines Hydroconquest GMT watch with a 41mm case size.

Material: Stainless Steel
Diameter: 41mm
Depth rating: 300m

Posted at

Apr 16, 2026, 9:54 AM

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Longines HydroConquest 41mm

Longines - L3.781.4.96.6 · $1,100

A Longines HydroConquest 41mm watch with a blue sunburst dial, featuring a clean crystal and flawless dial.

Condition: Excellent pre-owned condition
Diameter: 41mm

Posted at

Apr 15, 2026, 3:43 PM

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Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,900

Longines - L3.783.4 · $1,900

This Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch featuring a blue ceramic bezel and screw-down crown, powered by the calibre L688.2 column-wheel chronograph movement with a 54-hour power reserve.

Condition: Very good with minor usage marks
Case Size: 41mm x 51mm stainless steel case, 15.6mm thickness, 21mm lug width
Movement: Longines L688.2 automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
Water Resistance: 300m (30 ATM)

Posted at

Apr 15, 2026, 11:30 AM

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Longines Conquest L3.835.4.72.6

Longines - L3.835.4.72.6 · $2,350

This Longines Conquest features a unique panda dial and is available for sale in excellent condition, almost entirely free of wear.

Condition: Excellent condition
Payment Methods: crypto, cash, etc (except PayPal)
Local Meeting: Yes, available to meet locally in southwest FL
Trades Accepted: Tudor, Cartier, Rolex, Omega, Breitling, AP only

Posted at

Apr 15, 2026, 10:21 AM

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Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950

Longines - L3.790.4.56.6 · $1,950

This Longines HydroConquest GMT Black is a modern dive watch with excellent everyday wearability, offering both tool watch functionality and travel convenience.

Condition: Excellent pre-owned
Case size: 41mm diameter
Water resistance: 300m

Posted at

Apr 14, 2026, 9:45 PM

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