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

Longines Conquest L37774580 – 41mm Automatic – Black Dial – New in Box – Full Kit – $625 Shipped

Longines - L37774580 · $625

The seller is listing a Longines Conquest L37774580, a 41mm automatic watch with a black dial. It comes in its original packaging and is a full kit.

Condition: New
Case size: 41mm

Posted at

Feb 27, 2026, 4:10 PM

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Longines Hydroconquest 41mm Two Tone

Longines - Hydroconquest 41mm Two Tone · $999

A Longines Hydroconquest 41mm Two Tone watch with a black dial and two tone finish. It is in very good condition with some minor wear.

Condition: Very Good Pre Owned Condition
Diameter: 41mm

Posted at

Feb 27, 2026, 3:34 PM

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View listing on r/WatchExchange

Longines Conquest Vintage $599 Shipped (SERVICED)

Longines - 1577-1 · $599

A very rare Longines Conquest automatic watch with a stunning White satin finished sunburst dial and raised indexes. It has a solid build quality, creative design, and a classic look.

Condition: Great condition
Year: 1976
Case Size Diameter: 35.5mm (with crown)
Lug To Lug Size: 40.5mm

Posted at

Feb 23, 2026, 9:42 PM

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1980s Longines Conquest Alarm Quartz in Titanium | $330

Longines - Conquest Alarm Quartz · $330

This 1980s Longines Conquest Alarm Quartz features a titanium case with gold-plated accents, an alarm function, and a quartz movement. It's a quirky piece that shows Longines' experimentation with technology during this era.

Condition: Good for its age with minor usage marks and wear on the bracelet.
Case Size: 33.2 x 37.1mm diameter
Movement: ETA 957.011 quartz with alarm and date

Posted at

Feb 23, 2026, 5:08 PM

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