Longines Conquest Conquest Quartz 29.5 Stainless Steel - Diamond / Black

Reference L3.300.0.57.6

About this watch

The Longines Conquest Quartz 29.5 Stainless Steel - Diamond / Black is a remarkable timepiece that beautifully balances elegance and functionality. With its rich heritage and commitment to quality, Longines has solidified its reputation in the luxury watch market. The Conquest line is a tribute to the spirit of adventure, designed for those who appreciate both sport and sophistication. This exquisite timepiece features a quartz movement with accuracy, a gem-set bezel that adds a luxurious touch, and a water resistance of 300 meters. Its elegant design makes it suitable for all occasions, from formal gatherings to outdoor adventures. With its thoughtful design and comfortable fit, the Conquest Quartz 29.5 is perfect for anyone who appreciates fine craftsmanship, a sporty aesthetic, and the allure of luxury.

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Key Features

Quartz movement with accuracy
Gem-set bezel adds luxurious touch
Water resistance up to 300 meters
Elegant design suitable for all occasions
Thoughtful design for comfortable fit
Stainless steel case with sapphire glass
Longines caliber L152

Specifications

Brand

Longines

Family

Conquest

Model

Conquest Quartz 29.5 Stainless Steel - Diamond / Black

Reference

L3.300.0.57.6

Movement

l152

Movement Features

Hours, Jumping Minutes, Seconds
Date

Case

Stainless Steel

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Hydroconquest 43mm Full Black Ceramic Ref L3.784.4.56.9 MINT Full Kit $2500

Longines - L3.784.4.56.9 · $2,500

This Longines HydroConquest features a unique full black ceramic aesthetic with a sleek and stealthy design, while maintaining refined and versatile qualities. The watch boasts excellent scratch resistance, legible dial, and comfortable daily wear.

Condition: MINT
Case diameter: 43mm
Thickness: 13mm
Lug-to-lug length: 56mm

Posted at

Apr 10, 2026, 8:26 PM

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Longines Conquest Titanium VHP 300$

Longines - 4026 · $300

This Longines Conquest V.H.P is a 35mm titanium watch powered by the Quartz L174.2 caliber, providing accurate timekeeping of +/- 10 seconds per year.

Condition: Very clean considering its age, works with no issues
Case Width: 35mm
Lug To Lug: 38.5mm
Thickness: 8mm

Posted at

Apr 10, 2026, 2:29 PM

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

Longines - L3.742.4.56.6 · $850

This Longines Hydroconquest is a great example of a rugged yet stylish watch, featuring a stainless steel case and a durable design that can withstand everyday wear.

Condition: Great condition with some light wear on the bracelet and case
Bracelet type: Stainless Steel (OEM)
Payment methods accepted: Multiple payment methods including crypto
Trade options: Tudor, Cartier, Rolex, Omega, Breitling, AP

Posted at

Apr 10, 2026, 1:23 PM

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Longines Conquest 38mm Automatic Sunray Black Men's Watch L3.720.4.52.6 - $1400 SHIPPED

Longines - L3.720.4.52.6 · $1,400

The Longines Conquest Sunray Black is a beautiful and versatile watch that can be dressed up or down, with a stunning sunshine texture on the dial.

Condition: great condition, seldom worn
Case size: 38mm diameter
Original accessories included: true

Posted at

Apr 9, 2026, 4:45 PM

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Longines Hydroconquest GMT | 41mm | Sunburst Brown | Excellent Condition

Longines - Hydroconquest GMT · $1,350

This Longines Hydroconquest GMT is a refresh of the well-loved hydroconquest line range, featuring a new quick-adjust bracelet and updated bezel with brown ceramic insert. The sunray dial looks incredible in all lighting conditions, especially when exposed to sunlight.

Condition: Excellent
Case size: 41mm diameter
Lug to lug: 49.2mm
Thickness: 12.8mm

Posted at

Apr 8, 2026, 5:34 PM

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Longines Conquest Rubber Strap L3.720.4.02.9 $1,699

Longines - L3.720.4.02.9 · $1,699

This Longines Conquest watch features a rubber strap in green and comes with a deployment clasp, as well as all original boxes and papers.

Condition: Brand new
Water resistance: 30m

Posted at

Apr 8, 2026, 12:33 PM

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Longines Conquest 41 - $600

Longines - Conquest Quartz (WatchMaxx 2026 kit) · $600

Additional Details: Offered for sale is a 41mm Longines Conquest Quartz in great overall condition. Clean everyday piece presented as a full kit.

Condition: Great overall condition with light signs of wear
Case Size: 41mm

Posted at

Apr 7, 2026, 9:37 PM

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Longines HydroConquest 2 tone Green Dial 2024 $1320

Longines - HydroConquest 2 tone Green Dial 2024 · $1,320

Image: https://imgur.com/a/bPjxHRP

Posted at

Apr 7, 2026, 9:36 AM

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[WTS] Longines "Conquest" 1970s/Early '80s Integrated Solid Link Bracelet Calibre L.746.2 Ref.4384 (ETA 954.111) $455 (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) $455 (message me if you can't see the details/description in the comments)

Longines - 4384 · $455

This vintage Swiss-made Longines "Conquest" is a beautiful and refined example of an integrated steel sports watch. The dial shape is very '70s with its TV dial shape, featuring a subtle in between of grey and light brown, with a vertically brushed linen texture.

Condition: Great condition, considering age (minor general wear)
Movement: Longines calibre L.746.2 (ETA 954.111)
Bracelet: Solid link bracelet with fine brushed finish and screw pins for easy length adjustment
Case: Finely brushed case with industrial look, high-polish bezel, and thin profile (7.7mm)

Posted at

Apr 4, 2026, 11:09 PM

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