Longines Conquest Conquest Quartz 25 Diamond

Reference L3.158.0.89.6

About this watch

The Longines Conquest Quartz 25 Diamond (L3.158.0.89.6) is a stunning timepiece that beautifully marries elegance with functionality. With its impressive design, robust movement, and comfortable wearability, it's hard to find reasons not to love this watch. Its sleek stainless steel case features a diameter of 25.00 mm, making it compact yet bold enough to make a statement. The watch boasts an iridescent mother of pearl dial that reflects light beautifully, adding a touch of sparkle with gem-set indexes. With its secure clasp and adjustable bracelet, you can wear it all day without feeling weighed down. Its impressive water resistance of 300 meters makes it perfect for active lifestyles. At the heart of this watch is the Longines caliber L250, a refined version of the reliable ETA 956.112 quartz movement. This movement offers precision and reliability, ensuring you'll be on time for all your engagements. With a reserve of 26,280 seconds, you can count on it to keep ticking smoothly.

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Key Features

Longines caliber L250 quartz movement
Stainless steel case with sapphire glass
300 meters water resistance
Mother of pearl dial with gem-set indexes
Adjustable bracelet for a secure fit
Impressive design and robust construction

Specifications

Brand

Longines

Family

Conquest

Model

Conquest Quartz 25 Diamond

Reference

L3.158.0.89.6

Movement

l250

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 25mm

Dial Color

White

Crystal

Sapphire

Water Resistance

300

Current Listings

Longines Heritage Conquest - L1.611.4 - Great Condition - Box and Papers - $1,099

Longines - L1.611.4 · $1,099

This Longines Heritage Conquest features a silver dial and comes with original band, buckle, box, papers, an extra strap, and is in immaculate condition.

Condition: Excellent
Band Condition: Great
Buckle Condition: Great

Posted at

May 17, 2026, 12:54 PM

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Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - L3.740.3.56.7 · $550

A Longines Hydroconquest quartz two-tone diver watch, featuring a black dial and 41mm case size.

Condition: Pre-owned with light scratches
Case size: 41mm
Material: two tone

Posted at

May 17, 2026, 9:13 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) $430 (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) $430 (details/description in the comments)

Longines - 4384 · $430

This vintage Swiss-made Longines 'Conquest' watch features a refined integrated steel sports design with a subtle dial shape and elegant simplicity. It houses the Longines calibre L.746.2, a beautiful early quartz movement that works well to this day.

Condition: Great condition considering age, minor general wear
Case Dimensions: 30.2mm x 37.8mm x 7.7mm
Bracelet Length Capacity: up to roughly 18cm

Posted at

May 16, 2026, 10:52 PM

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Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550

Longines - L3.740.3.56.7 · $550

This Longines Hydroconquest is a fun and capable diver that comes in the 41mm version, featuring a black dial and quartz movement.

Condition: pre-owned with light scratches
Case Size: 41mm
Movement Type: quartz

Posted at

May 16, 2026, 7:05 PM

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Longines Hydroconquest 39mm black bezel/dial

Longines - 39mm black bezel/black dial Hydroconquest · $2,200

This Longines Hydroconquest 39mm features a black bezel and dial, is in excellent condition, and comes with its full kit including boxes, hangtags, warranty card, and owner's manual.

Condition: Like-new
Case size: 39mm diameter
Box status: full-kit
Warranty remaining: five years

Posted at

May 16, 2026, 5:17 PM

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