Longines Conquest Conquest 29.5 Quartz Stainless Steel Diamond Bezel

Reference L3.258.0.88.6

Longines Conquest 29.5 Quartz Stainless Steel Diamond Bezel

About this watch

When it comes to luxury watches, few brands evoke the same level of admiration and trust as Longines. The Conquest L3.258.0.88.6 is a stunning piece that combines elegance with functionality. Its round stainless steel case and diamond bezel create a harmonious balance between style and durability. The white mother-of-pearl dial shimmers differently under varying light conditions, giving it a dynamic look. Equipped with stick hands and gem-set indexes, this watch makes a bold statement without being overly flashy. At the heart of the Conquest L3.258.0.88.6 lies the Longines Caliber L250, a reliable and precise quartz movement derived from the ETA 956.112. With a 7-jewel configuration, this movement is designed to last, offering a power reserve that keeps your watch ticking smoothly. The Conquest L3.258.0.88.6 also boasts an impressive water resistance rating of 300 meters, making it suitable for swimming, snorkeling, or even diving. Wearing the Conquest L3.258.0.88.6 is a comfortable experience, thanks to its stainless steel bracelet that fits snugly on your wrist without pinching or causing discomfort. The Longines Conquest 29.5 Quartz Stainless Steel Diamond Bezel is undoubtedly a stunning watch that tells time beautifully while also making a statement about your taste and style.

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Key Features

Stainless Steel Case
Gem-Set Diamond Bezel
White Mother-of-Pearl Dial
Quartz Longines Caliber L250 Movement
300m Water Resistance
Stick Hands
Sapphire Glass

Specifications

Brand

Longines

Family

Conquest

Model

Conquest 29.5 Quartz Stainless Steel Diamond Bezel

Reference

L3.258.0.88.6

Movement

l250

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 30mm

Dial Color

White

Crystal

Sapphire

Water Resistance

300

Current Listings

2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set

Longines - L3.779.4.56.6 · $1,900

The newly redesigned Longines HydroConquest in the highly sought-after 39mm size, featuring a refined dial and upgraded bracelet.

Condition: Excellent Used Condition
Size: 39mm diameter
Thickness: ~11.9mm
Lug-to-lug length: 47mm

Posted at

May 7, 2026, 8:43 PM

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Longines Hydroconquest GMT 41mm

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A black dial Longines Hydroconquest GMT watch with a 41mm case size, comes complete with a full set including a dated warranty card.

Condition: Pre-owned, minor signs of wear
Diameter: 41mm
Case material: unknown
Band: no details provided

Posted at

May 7, 2026, 3:36 PM

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Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.

Longines - L3.782.4.56.6 · $1,350

A Longines Hydroconquest 43mm watch on a black dial with a stainless steel bracelet, now on an Ali Rubber strap.

Condition: Mint condition, worn approximately 5 times
Case size: 43mm diameter
Lug to lug: 53mm
Thickness: 11.90mm

Posted at

May 7, 2026, 4:43 AM

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[WTS] Longines "Conquest" Swiss-Made 1970s/Early '80s Integrated Solid Link Bracelet, Calibre L.746.2 Ref.4384 (ETA 954.111) $435 (details/description in the comments)

Longines "Conquest" Swiss-Made 1970s/Early '80s Integrated Solid Link Bracelet, Calibre L.746.2 Ref.4384 (ETA 954.111) $435 (details/description in the comments)

Longines - 4384 · $435

This vintage Swiss-made Longines 'Conquest' watch 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 color with a vertically brushed linen texture.

Condition: Great condition considering its age, only minor general wear
Movement: Longines calibre L.746.2 (Swiss-made ESA ETA 954.111)
Bracelet Type: Integrated solid link bracelet
Bracelet Dimensions: Accommodates up to roughly 18cm wrist size

Posted at

May 6, 2026, 9:53 PM

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Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 🚢

Longines - L3.740.3.56.7 · $600

This Longines Hydroconquest is a 41mm two-tone diver's watch with a quartz movement.

Condition: Used with light scratches
Size: 41mm diameter

Posted at

May 6, 2026, 9:43 PM

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2025 Longines Hydroconquest 41mm Ref: L37814056

Longines - L37814056 · $1,300

This listing is for a 2025 Longines Hydroconquest 41mm watch, featuring an automatic self-winding caliber L888.5, unidirectional green ceramic bezel, and 300M water resistance.

Condition: Like new with some minor marks on the bracelet and buckle
Case size: 41mm
Bracelet type: Stainless steel
Water resistance: 300m depth rating

Posted at

May 6, 2026, 8:37 PM

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Longines Hydroconquest 42 mm “Green” 2026

Longines - Hydroconquest 42mm · $1,800

Up for sale is one of my new Longines Hydroconquest 42mm watches, I purchased several but find myself gravitating towards other models.

Condition: New
Case size: 42mm diameter

Posted at

May 6, 2026, 7:28 PM

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(Longines) (2026 Hydroconquest 39mm Commonwealth) Brand New and Unworn

Longines - L3.779.4.09.9 · $2,650

This is a Limited Edition Hydroconquest Commonwealth Games watch from Longines, purchased brand new from an authorized dealer and still under warranty.

Case diameter: 39mm
Box condition: great condition with exception of price sticker on outer box

Posted at

May 6, 2026, 5:30 PM

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