Longines Conquest Conquest 39 Automatic Black

Reference L3.676.4.58.6

About this watch

The Longines Conquest 39 Automatic Black is a masterpiece of Swiss watchmaking, blending elegance, functionality, and durability in perfect harmony. This stunning timepiece features a sleek black dial with mixed indexes, complemented by silver-tone hands that glide smoothly across the surface. The date display at 3 o'clock adds a touch of practicality to this versatile watch, suitable for both casual and formal occasions. With its robust stainless steel case, polished finish, and sapphire crystal, this watch exudes luxury and sophistication. The beating heart of the Conquest 39 is the Longines caliber L633.5, based on the renowned ETA 2824-2 movement, boasting an impressive frequency of 28,800 vibrations per hour. This automatic movement offers precision timekeeping, with a power reserve of 38 hours and 25 jewels that reduce friction for enhanced longevity. The stainless steel bracelet provides a comfortable fit, while its lightweight yet sturdy design makes it perfect for extended wear. Whether you're looking for a reliable timepiece or a statement piece that speaks to your appreciation for quality craftsmanship, the Longines Conquest 39 Automatic Black is an exceptional choice.

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Key Features

Longines caliber L633.5 movement
Sapphire crystal glass
300 meters water resistance
Stainless steel case and bracelet
Polished finish
Date display at 3 o'clock
Lightweight yet sturdy design

Specifications

Brand

Longines

Family

Conquest

Model

Conquest 39 Automatic Black

Reference

L3.676.4.58.6

Movement

l633-5

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 39mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

[WTS] Longines "Conquest" 1970s/Early '80s Integrated Solid Link Bracelet Calibre L.746.2 Ref.4384 (ETA 954.111) $445 (message me if you can't see the details/description in the comments)

Longines "Conquest" 1970s/Early '80s Integrated Solid Link Bracelet Calibre L.746.2 Ref.4384 (ETA 954.111) $445 (message me if you can't see the details/description in the comments)

Longines - 4384 · $445

This vintage Swiss-made Longines Conquest from late-1970s or early-1980s features a beautiful integrated steel sports watch design with a subtle grey and light brown dial. The high polish stick indices have a black line going through them and work well with the black dipped pencil hands.

Condition: Great condition considering it was made about 45 years ago
Case dimensions: 30.2mm x 37.8mm x 7.7mm
Bracelet length adjustability: Solid links with screw pins for easy and hassle-free changes
Wrist size range: up to roughly 18cm

Posted at

Apr 20, 2026, 11:06 PM

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Longines HydroConquest GMT 41mm Black, Full Kit, June 2025

Longines - HydroConquest GMT · $1,980

Up for sale is my mint condition Longines HydroConquest GMT, a full kit with box, papers, tags, and over 4 years left on the factory warranty.

Condition: Mint condition
Case dimensions: 41mm diameter, 49mm lug to lug, 12.9mm thickness
Movement: L844.5 with 72hrs power reserve
Water resistance: 300m

Posted at

Apr 19, 2026, 10:47 PM

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Longines Hydroconquest 39mm Black MINT

Longines - Hydroconquest 39mm Black · $2,200

A mint condition Longines Hydroconquest 39mm in black with a super comfortable bracelet and excellent bezel action.

Condition: MINT
Bracelet type: Super comfortable bracelet
Clasp type: Excellent on the fly clasp
Bezel action: Great bezel action

Posted at

Apr 19, 2026, 9:12 AM

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Longines HyrdroConquest L3.742.4.56.6 Complete set + OEM Stainless Steel Bracelet

Longines - L3.742.4.56.6 · $775

For sale is a Longines Hydroconquest, this watch comes with its complete set including an OEM stainless steel bracelet.

Condition: great condition with light wear on the bracelet and case
Bracelet type: stainless steel
Payment methods accepted: crypto, other payment methods (except PayPal)
Trade options: Tudor, Cartier, Rolex, Omega, Breitling, AP

Posted at

Apr 17, 2026, 12:17 PM

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Longines HydroConquest 39mm Green Ceramic Bezel 2026 NEW L3.779.4.06.6 – $2800 + shipping

Longines - L3.779.4.06.6 · $2,800

This Longines HydroConquest features a stunning green ceramic bezel and matching dial, with a 39mm size that wears well on the wrist.

Condition: Brand new
Case Size: 39mm diameter
Bezel Material: green ceramic

Posted at

Apr 17, 2026, 6:00 AM

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Longines Conquest 38mm Automatic Sunray Black Men's Watch L3.720.4.52.6 - $1350 SHIPPED

Longines - L3.720.4.52.6 · $1,350

This beautiful Longines 38mm Conquest Sunray Black is a great everyday piece that can be dressed up or down, with a dial featuring a sunshine texture reminiscent of vintage Omega pie pan constellation watches.

Condition: Great condition, very little wear
Diameter: 38mm

Posted at

Apr 16, 2026, 7:15 PM

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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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