Longines HydroConquest HydroConquest 39 Automatic Stainless Steel / Blue / Bracelet
Reference L3.780.4.96.6
About this watch
The Longines HydroConquest 39 Automatic is a stunning dive watch that exudes elegance and sportiness. With its matte blue dial, mixed indexes, and proprietary hands, this timepiece is both visually striking and highly readable. Protected by a sapphire crystal and boasting an impressive water resistance of 300 meters, the HydroConquest is designed to withstand even the most demanding underwater adventures. At its heart lies the Longines caliber L888.5, a chronometer-certified self-winding movement that features a silicon balance spring for enhanced accuracy and durability. The watch's robust stainless steel case and comfortable ceramic bezel add to its durability and style, while the adjustable stainless steel bracelet ensures a secure fit on any wrist size. Whether you're diving into the ocean or heading to a dinner party, the Longines HydroConquest 39 Automatic is the perfect timepiece for those who appreciate quality, style, and performance.
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Key Features
- Stunning blue dial
- Chronometer-certified movement
- 300m water resistance
- Sapphire crystal protection
- Silicon balance spring
- Robust stainless steel case
- Adjustable stainless steel bracelet
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- HydroConquest 39 Automatic Stainless Steel / Blue / Bracelet
- Reference
- L3.780.4.96.6
- Movement
- l888-5
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer
- Case
- 39mm
- Dial Color
- Blue
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950](https://preview.redd.it/4we6iz8pe9vg1.jpg?width=640&crop=smart&auto=webp&s=9766afde46f63ad54eb826266f2690ad5ac402f9)
Longines HydroConquest GMT Black. Ref: L3.790.4.56.6 (2025) Complete. $1,950
This Longines HydroConquest GMT Black is a modern dive watch with excellent everyday wearability, offering both tool watch functionality and travel convenience.
- Condition: Excellent pre-owned
- Case size: 41mm diameter
- Water resistance: 300m
![[WTS] (Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB](https://preview.redd.it/kzo89l4370vg1.jpg?width=640&crop=smart&auto=webp&s=04ed40cb783b2de9e048d862b02c55f2128f1b42)
(Longines) (2026 Hydroconquest 42) Full 5 Year Warranty, LNIB
This newly released Longines Hydroconquest is a large watch with exceptional fit and finish. It comes in its original packaging with a full kit and warranty.
- Condition: LNIB (Like New In Box)
- Case size: 42mm
- Water resistance: not specified
![[WTS] Longines Hydroconquest 43mm Full Black Ceramic Ref L3.784.4.56.9 MINT Full Kit $2500](https://preview.redd.it/5p9s2jfuggug1.jpg?width=640&crop=smart&auto=webp&s=5d1e0de609733b75cfc9f08cfa83b0e43cb60de0)
Longines Hydroconquest 43mm Full Black Ceramic Ref L3.784.4.56.9 MINT Full Kit $2500
This Longines HydroConquest features a unique full black ceramic aesthetic with a sleek and stealthy design, while maintaining refined and versatile qualities. The watch boasts excellent scratch resistance, legible dial, and comfortable daily wear.
- Condition: MINT
- Case diameter: 43mm
- Thickness: 13mm
- Lug-to-lug length: 56mm
![[WTS] Longines Hydroconquest GMT | 41mm | Sunburst Brown | Excellent Condition](https://preview.redd.it/l4rw8wcac1ug1.jpg?width=640&crop=smart&auto=webp&s=c8c71d63061517bfabf8abb08a9613d7e73cfe65)
Longines Hydroconquest GMT | 41mm | Sunburst Brown | Excellent Condition
This Longines Hydroconquest GMT is a refresh of the well-loved hydroconquest line range, featuring a new quick-adjust bracelet and updated bezel with brown ceramic insert. The sunray dial looks incredible in all lighting conditions, especially when exposed to sunlight.
- Condition: Excellent
- Case size: 41mm diameter
- Lug to lug: 49.2mm
- Thickness: 12.8mm
![[WTS] Longines HydroConquest 2 tone Green Dial 2024 $1320](https://preview.redd.it/2q666j08urtg1.jpg?width=640&crop=smart&auto=webp&s=2afd196e0b80c65f8d012c7ba5c2d5bfc0fb2a95)
Longines HydroConquest 2 tone Green Dial 2024 $1320
- Image: https://imgur.com/a/bPjxHRP
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