Longines HydroConquest HydroConquest 39 Automatic Stainless Steel - Pink Gold / Grey / Bracelet
Reference L3.780.3.78.6
About this watch
The Longines HydroConquest L3.780.3.78.6 is a stunning luxury watch that combines elegance with functionality. This automatic stainless steel model features a 39mm diameter, 12.20mm height, and ceramic, stainless steel materials for durability. With a water resistance rating of 300 meters, it's perfect for diving enthusiasts or casual wearers who appreciate a robust yet stylish watch. The sleek design boasts pink gold accents, a grey matte finish, and mixed indexes that provide unique visual appeal. The proprietary hands ensure optimal legibility, making it easy to tell the time in any environment. Additional features include a date function, rotating bezel with 0-60 scale, and adjustable clasp for customizable comfort.
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Key Features
- Longines caliber L888.5 automatic movement
- 300m water resistance rating
- 39mm diameter stainless steel case
- Ceramic and PVD gold coating for durability
- Silicon balance spring for enhanced accuracy
- 64-hour power reserve
- Date function and rotating bezel with 0-60 scale
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- HydroConquest 39 Automatic Stainless Steel - Pink Gold / Grey / Bracelet
- Reference
- L3.780.3.78.6
- Movement
- l888-5
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer
- Case
- 39mm
- Dial Color
- Grey
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] 2025 Longines Hydroconquest 41mm Ref: L37814056](https://preview.redd.it/ya49a4pp1mzg1.jpg?width=640&crop=smart&auto=webp&s=cb113d6816c7a2fe45079651eea6800af76c44d8)
2025 Longines Hydroconquest 41mm Ref: L37814056
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
![[WTS] Longines Hydroconquest 42 mm “Green” 2026](https://preview.redd.it/hm9dwcf6qlzg1.jpg?width=640&crop=smart&auto=webp&s=1980c64f607b394182742d8f0b65514a62f73a2a)
Longines Hydroconquest 42 mm “Green” 2026
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
![[WTS] (Longines) (2026 Hydroconquest 39mm Commonwealth) Brand New and Unworn](https://preview.redd.it/fsb6xre45lzg1.jpg?width=640&crop=smart&auto=webp&s=a209b82914969f35eb9b0ccefdfa7e6763495a5f)
(Longines) (2026 Hydroconquest 39mm Commonwealth) Brand New and Unworn
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
Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.
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