Longines HydroConquest HydroConquest 44 Quartz Stainless steel / Black / Bracelet
Reference L3.840.4.56.6
About this watch
The Longines HydroConquest L3.840.4.56.6 is a remarkable watch that embodies the spirit of adventure while maintaining classic elegance. Its robust 44mm round case exudes power and reliability, featuring a black dial with luminous hands and mixed indexes for excellent readability in any environment. Crafted from durable stainless steel, this timepiece boasts a brushed finish with polished accents, adding an understated touch of sophistication. The sturdy stainless steel bracelet accommodates a secure fit on the wrist, perfect for aquatic adventures or casual outings. At its core lies the reliable Longines caliber L157 quartz movement, offering accuracy and longevity with a power reserve of 26,280 seconds. This watch is built to withstand pressure, featuring an impressive water resistance of 300 meters and a rotating bezel with a 0-60 scale for tracking elapsed time underwater.
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Key Features
- 44mm round stainless steel case
- Black dial with luminous hands and mixed indexes
- Longines caliber L157 quartz movement
- 300m water resistance
- Rotating bezel with 0-60 scale
- Sapphire glass
- Stainless steel bracelet
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- HydroConquest 44 Quartz Stainless steel / Black / Bracelet
- Reference
- L3.840.4.56.6
- Movement
- l157
- Movement Features
-
- Hours, Seconds, Minutes
- Date
- Case
- Stainless Steel 44mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines HydroConquest 39mm Black Dial – 2026 Model, Worn Once. $1,995](https://preview.redd.it/ihyzvffwa5zg1.png?width=640&crop=smart&auto=webp&s=0aaa89e4a10141e5b2cb16432d533ac6562ca820)
Longines HydroConquest 39mm Black Dial – 2026 Model, Worn Once. $1,995
A Longines HydroConquest with a black dial and steel bracelet for sale. It's the latest iteration from 2026, purchased recently but only worn once to a wedding.
- Condition: Near mint, worn once
- Case size: 39mm
- Movement: Automatic
![[WTS] New Longines HydroConquest 42mm Frosted Blue Dial](https://preview.redd.it/dchzi1zvhyyg1.jpg?width=640&crop=smart&auto=webp&s=4acb97adce81fab67340b57de2dcad24b72c4898)
New Longines HydroConquest 42mm Frosted Blue Dial
A brand new Longines HydroConquest with a frosted blue dial in 42mm size.
- Condition: new
- Case size: 42mm
- Diameter: 42mm
![[WTS] Longines HydroConquest GMT Blue Ref: L3.790.4.96.6 (2026). New/Complete. $1,999](https://preview.redd.it/24f0tlqxbmyg1.jpg?width=640&crop=smart&auto=webp&s=05634fa81272e703de563acc5e0cf7d5e94065b7)
Longines HydroConquest GMT Blue Ref: L3.790.4.96.6 (2026). New/Complete. $1,999
The Longines HydroConquest GMT Blue is a true GMT diver with a sunray blue dial, blue ceramic bezel, and Calibre L844.5 automatic movement.
- Condition: Brand New
- Case diameter: 41mm
- Water resistance: 300m
- Movement type: Calibre L844.5 automatic
![[WTS] New Longines Hydroconquest 42mm Frosted Blue Dial](https://preview.redd.it/p91j2kpsejyg1.jpeg?auto=webp&s=9ac016ff9120a01f02fa1458897abd9878e27d5e)
New Longines Hydroconquest 42mm Frosted Blue Dial
A brand new Longines Hydroconquest 42mm with a frosted blue dial, sold exclusively at Corporate boutiques. The watch comes with all links, papers, and box.
- Condition: Brand new
- Diameter: 42mm
![[WTS] 2026 Longines HydroConquest L37884906 42 mm Black Dial Blue Bezel Full Set $1,900](https://preview.redd.it/ct5ldusrpfyg1.jpg?width=640&crop=smart&auto=webp&s=6b13d5c447ea4486f055edabe339d2d9df46e3f0)
2026 Longines HydroConquest L37884906 42 mm Black Dial Blue Bezel Full Set $1,900
The Longines HydroConquest L37884906 features a black dial and blue ceramic bezel, with an automatic movement providing reliable performance. The watch has a robust build, unidirectional dive bezel, and strong water resistance, making it a capable tool watch while maintaining a refined aesthetic.
- Condition: Excellent (pre-owned, minimal wear)
- Year: 2026
- Case size: 42mm diameter
- Case material: Stainless steel
![[WTS] Longines HydroConquest Green Dial Two Tone $1350 41mm](https://preview.redd.it/29r2f0ebqxxg1.jpg?width=640&crop=smart&auto=webp&s=0dffba53801dd6b0d374fbd1416428d7feeef8ca)
Longines HydroConquest Green Dial Two Tone $1350 41mm
This Longines HydroConquest features a green dial and two-tone design.
![[WTS] Longines HydroConquest 43mm](https://preview.redd.it/e51lhy1dztxg1.jpg?width=640&crop=smart&auto=webp&s=7ed73a07757103d378f4e1721f8a75ce148daee0)
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
![[WTS] Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition](https://preview.redd.it/j4hyuklq8rxg1.jpg?width=640&crop=smart&auto=webp&s=6a22640f03a2a9be81178fc740f1debeeedd9cc1)
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
![[WTS] Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6](https://preview.redd.it/ofaisyzhimxg1.jpg?width=640&crop=smart&auto=webp&s=6b40bca29f1af35e3d66814bd98d3e090b10c691)
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