Longines Conquest Conquest Quartz 29.5 Stainless Steel / Black - Diamond

Reference L3.277.4.57.6

Longines Conquest Quartz 29.5 Stainless Steel / Black - Diamond

About this watch

The Longines Conquest Quartz 29.5 boasts a round stainless steel case that is both sturdy and stylish, featuring a black dial with gem-set indexes for a touch of sophistication. The watch's durability is ensured by the use of resistant stainless steel, while the sapphire glass offers excellent clarity and scratch resistance. At its heart lies the Longines caliber L152, a quartz movement based on the reliable ETA 256.111, celebrated for its accuracy and featuring a jumping minutes display and date display for added practicality. With an impressive water resistance of 300 meters, this watch is perfect for both formal events and everyday adventures. Its elegant design and robust build make it versatile enough for any occasion, while its comfortable lug width of 15 mm ensures a secure fit on a variety of wrist sizes. This timepiece embodies a perfect blend of practicality, elegance, and durability, making it a statement of style and sophistication that you'll cherish for years to come.
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Key Features

  • Stainless Steel Case
  • Black Dial with Gem-Set Indexes
  • Sapphire Glass
  • Longines Caliber L152 Quartz Movement
  • Jumping Minutes Display
  • Date Display
  • 300m Water Resistance

Specifications

Brand
Longines
Family
Conquest
Model
Conquest Quartz 29.5 Stainless Steel / Black - Diamond
Reference
L3.277.4.57.6
Movement
l152
Movement Features
  • Hours, Jumping Minutes, Seconds
  • Date
Case
Stainless Steel
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit

Longines HydroConquest 39 mm Black (Ref. L3.780.4.56.6) – Full Kit

Longines - L3.780.4.56.6 · $1,150
The Longines HydroConquest 39 mm Black is a stainless steel automatic watch with a black sunray dial, applied indices, and date at 3 o'clock. It features a matte black ceramic bezel, sapphire crystal with AR coating, and a 300m water resistance.

  • Condition: Very good, with light desk-wear and a few small hairline scratches
  • Case Size: 39 mm diameter
  • Water Resistance: 300 m depth rating
  • Movement: Longines L888 automatic, up to 72 hr power reserve
Posted at
May 3, 2025, 1:07 PM
Active
View listing on r/WatchExchange
[WTS][CA-USA][H] Longines Hydroconquest 41mm Blue | Seiko Prospex “62MAS” SPB423 US Special Edition | Hamilton Murph 42mm | Seiko Speedtimer Panda SSC813 | Orient Dive 43mm [W] $800 | $700 | $625 | $400 | $150 PayPal F&F, venmo, zelle, local cash

[CA-USA][H] Longines Hydroconquest 41mm Blue | Seiko Prospex “62MAS” SPB423 US Special Edition | Hamilton Murph 42mm | Seiko Speedtimer Panda SSC813 | Orient Dive 43mm [W] $800 | $700 | $625 | $400 | $150 PayPal F&F, venmo, zelle, local cash

Longines - L3.742.4.96.6 · $800
Legendary Hydroconquest auto blue with gray market warranty, purchased last month and comes full kit with stock bracelet.

  • Gray market warranty: yes
  • Purchase date: last month
  • Warranty status: never been worn outside
Posted at
May 2, 2025, 9:56 PM
Active
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[WTS] Longines Conquest Automatic - 41 mm

Longines Conquest Automatic - 41 mm

Longines - L3.777.4.76 · $650
A Longines Conquest Automatic watch with a clean white dial and a 41mm case size is being sold. It has a water resistance of up to 300 meters.

  • Case Size: 41mm diameter
  • Water Resistance: 300m depth rating
  • Box Papers: No box or papers included
Posted at
Apr 30, 2025, 9:09 PM
Active
View listing on r/WatchExchange
[WTS] Serviced 1960s Longines Conquest Automatic w/ 35mm Steel Case & “Fish in Kelp” Caseback w/ Extract from the Archives

Serviced 1960s Longines Conquest Automatic w/ 35mm Steel Case & “Fish in Kelp” Caseback w/ Extract from the Archives

Longines - 9044-7 · $650
A fully original 1966 Longines Conquest automatic watch with a stainless steel case and unique 'fish in kelp' caseback. The silver dial features a spiral design and has developed patina.

  • Condition: Pre-owned, serviced in 2023
  • Movement caliber: 291
  • Case size: 35mm
  • Dial condition: Original, non-refinished silver dial with patina
Posted at
Apr 30, 2025, 11:26 AM
Active
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[WTS] Longines Hydroconquest 41mm w/ Box *Price Drop*

Longines Hydroconquest 41mm w/ Box *Price Drop*

Longines - Hydroconquest · $625
A Longines Hydroconquest watch with a 41mm case size, excluding the crown guards, and a 7 inch wrist bracelet. It comes in its original box.

  • Bracelet Size: 7 inch
  • Case Diameter: 41mm
Posted at
Apr 28, 2025, 4:52 PM
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[WTS] Longines Conquest 39mm White Dial – Automatic – Lightly Worn – Full Steel

Longines Conquest 39mm White Dial – Automatic – Lightly Worn – Full Steel

Longines - Conquest
This is a Longines Conquest watch with a white dial, measuring 39mm in diameter. It features an automatic movement and a full steel case.

  • Condition: lightly worn
Posted at
Apr 26, 2025, 11:18 AM
Active
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Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines - L3.781.4.06.9 · $1,095
This Longines HydroConquest is a steel diver's watch with an olive green matte dial and a unidirectional rotating ceramic bezel. The stainless steel case measures 41mm in diameter and has a water resistance of up to 300 meters.

  • Condition: Excellent Condition
  • Case Diameter: 41mm
  • Thickness: 11.9mm
  • Bezel Type: Unidirectional rotating Green Ceramic
Posted at
Feb 5, 2025, 2:47 AM
Active
View listing on RolexForums