Longines Conquest Conquest Quartz 25 Diamond

Reference L3.158.0.87.6

About this watch

The Longines Conquest Quartz 25 Diamond stands out as a perfect blend of elegance and functionality, featuring an exquisite mother-of-pearl dial, gem-set indexes, and robust quartz movement. This stunning timepiece combines style with precision, making it suitable for both formal and casual occasions. With its impressive water resistance of up to 300 meters and scratch-resistant sapphire glass, this watch is built to last. The stainless steel case and beautifully crafted bracelet provide a secure fit without unnecessary heft, weighing in at a lightweight design. Whether you’re looking to elevate your office style or add a touch of glamour to casual outfits, the Conquest Quartz 25 Diamond fits the bill. Its timeless design and luxurious details ensure that it will be cherished for years to come.
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Key Features

  • Longines Caliber L250 (ETA 956.112) Quartz Movement
  • 300 meters Water Resistance
  • Sapphire Glass
  • Stainless Steel Case
  • Gem-Set Indexes
  • Stick-style Hands
  • Mother-of-Pearl Dial

Specifications

Brand
Longines
Family
Conquest
Model
Conquest Quartz 25 Diamond
Reference
L3.158.0.87.6
Movement
l250
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 25mm
Dial Color
White
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) $440 (details/description in the comments)

Longines "Conquest" 1970s/Early '80s Integrated Solid Link Bracelet, Calibre L.746.2 Ref.4384 (ETA 954.111) $440 (details/description in the comments)

Longines - 4384 · $440
This vintage Swiss-made Longines 'Conquest' is a beautiful example of an integrated steel sports watch from the late-1970s. The design embodies elegance and simplicity with its TV dial shape, high polish stick indices, and finely brushed case.

  • Condition: Great condition, minor general wear
  • Bracelet type: Integrated solid link
  • Bracelet material: Steel
  • Bracelet finish: Finely brushed
Posted at
Apr 28, 2026, 11:43 PM
Active
[WTS] Longines Hydroconquest 39mm Black MINT

Longines Hydroconquest 39mm Black MINT

A Longines Hydroconquest 39mm in black, described as 'SUPER SUPER SUPER watch' with a comfortable bracelet and excellent bezel action.

  • Condition: MINT, basically new
  • Bracelet length: Super comfortable
  • Bezel action: Great
Posted at
Apr 28, 2026, 9:37 PM
Active
[WTS] 1960s Longines Conquest Ref. 7012.1 Cal.291 | Great Condition (Serviced) | $650

1960s Longines Conquest Ref. 7012.1 Cal.291 | Great Condition (Serviced) | $650

This 1960s Longines Conquest is a classic everyday piece from the brand's golden era, featuring a clean and well-proportioned design backed by an in-house movement.

  • Condition: Great serviced condition
  • Case size: 35mm
  • Lug width: 18mm
  • Crystal material: plexiglass
Posted at
Apr 28, 2026, 11:25 AM
Active
[WTS] Longines HydroConquest Green Dial Two Tone $1350 41mm

Longines HydroConquest Green Dial Two Tone $1350 41mm

Longines - HydroConquest · $1,350
This Longines HydroConquest features a green dial and two-tone design.

Posted at
Apr 28, 2026, 9:41 AM
Active
[WTS] Longines HydroConquest 43mm

Longines HydroConquest 43mm

A Longines HydroConquest 43mm diver watch for sale, with excellent timekeeping and minimal signs of wear.

  • Condition: Pre-owned with normal wear
  • Bracelet condition: normal wear with worn clasp
  • Case condition: scratch-free except on the back
  • Papers included: true
Posted at
Apr 27, 2026, 9:05 PM
Active
[WTS] Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New

Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New

Longines - 2026 · $4,200
The listing is for a Longines HydroConquest 42mm watch with a blue ceramic bezel, accompanied by a full kit and a 2026 card.

  • Condition: Like new
  • Material: Blue Ceramic Bezel
  • Size: 42mm
Posted at
Apr 27, 2026, 1:18 PM
Active
[WTS] Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition

Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition

This is a brand new, unworn Longines HydroConquest limited edition watch from the 2026 Commonwealth Games collection. It features a 39mm case and comes with various accessories.

  • Condition: Brand New Unworn
  • Case size: 39mm
  • Limited edition status: One of 2026
Posted at
Apr 27, 2026, 11:58 AM
Active
[WTS][US] Longines Conquest - Blue - 41mm - L3.830.4.92.6 - 2026 NEW - Full Set w/ 5-Year Warranty

[US] Longines Conquest - Blue - 41mm - L3.830.4.92.6 - 2026 NEW - Full Set w/ 5-Year Warranty

Longines - L3.830.4.92.6 · $1,950
A 2026 Longines Conquest in blue, with a 41mm case size and a full set of accessories including a 5-year warranty.

  • Condition: New, unworn
  • Case Size: 41mm diameter
Posted at
Apr 27, 2026, 8:32 AM
Active
[WTS] Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6

This Longines Hydroconquest features a 41mm ceramic case, black dial, and is sized for an approximate 7.4" wrist.

  • Condition: Pre-owned with scratches on the case and bracelet
  • Case material: ceramic
  • Bracelet size: 7.4in diameter
  • Warranty: no warranty included
Posted at
Apr 26, 2026, 7:58 PM
Active