Longines HydroConquest HydroConquest 41 Automatic Stainless Steel / Matte Black / NATO
Reference L3.781.4.05.2
About this watch
The Longines HydroConquest 41 Automatic in matte black is a statement piece that beautifully combines functionality with elegance. Its 41mm round case exudes sophistication, making it suitable for both casual outings and formal events. The watch boasts an impressive water resistance of up to 300 meters, powered by the reliable automatic movement, Longines caliber L888.3, which provides a power reserve of 65 hours. The stunning matte black finish is complemented by mixed indexes on the dial that provide a unique touch, while the rotating bezel adds a functional edge to the watch. The comfortable NATO strap ensures a secure fit without compromising style, making it perfect for both sport and leisure wear. With its rich heritage and precision craftsmanship, Longines has consistently blended tradition with innovation, resulting in a timepiece that is both beautiful and robust.
Buy Now on Jomashop
This is an affiliate link
Key Features
- Automatic movement with 65-hour power reserve
- Water resistance up to 300 meters
- Durable sapphire crystal
- Comfortable NATO strap
- Stunning matte black finish
- Mixed indexes on the dial
- Rotating bezel for tracking time underwater
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- HydroConquest 41 Automatic Stainless Steel / Matte Black / NATO
- Reference
- L3.781.4.05.2
- Movement
- l888-3
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- Stainless Steel 41mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel](https://preview.redd.it/byuqh6i86vjf1.jpg?width=640&crop=smart&auto=webp&s=710b313c8aa5dbbc4ad604a45dc3c95d7dd925ab)
Longines Hydroconquest Automatic 41MM - Green Ceramic Bezel
This Longines HydroConquest features a green ceramic bezel, automatic movement with date display, and a power reserve of up to 72 hours.
- Condition: Like new/never worn
- Case size: 41mm diameter
- Water resistance: 30 bar
- Crystal material: scratch-resistant sapphire crystal
![[WTS] Longines Hydroconquest SS Rose Gold Accents 39mm Ref L3.780.3.78.6 2024 Full Kit plus rubber strap $1100 net to me](https://preview.redd.it/r6oqh0i87skf1.jpg?width=640&crop=smart&auto=webp&s=7f5700551a5a625c1c3f237bc3f4a194b45059db)
Longines Hydroconquest SS Rose Gold Accents 39mm Ref L3.780.3.78.6 2024 Full Kit plus rubber strap $1100 net to me
A Longines Hydroconquest SS watch with rose gold accents and a sunray grey dial, featuring a 39mm case and various water resistance and durability features.
- Condition: Pre-owned
- Case Size: 39mm diameter
- Lug Width: 19mm
- Thickness: 12mm
![[WTS] Longines Hydroconquest 43mm - $950](https://preview.redd.it/m6h351h3rakf1.jpeg?auto=webp&s=dfc716611f308698339168c18739a540541089cb)
Longines Hydroconquest 43mm - $950
This Longines HydroConquest 43mm is in excellent working order and comes with a WatchMaxx full kit.
- Condition: Great condition
- Depth rating: 200m
![[WTS] Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped](https://preview.redd.it/mxbo2ro1uvjf1.jpg?width=640&crop=smart&auto=webp&s=3b99c94fd0d84eb7a8054e7ed6c085dbf2acccde)
Longines HydroConquest Ref. L3.780.3 – Two-Tone Steel & Rose Gold PVD – 39mm Automatic Diver – $999 Shipped
a Longines HydroConquest Ref. L3.780.3, a Two-Tone Steel & Rose Gold PVD automatic diver watch with a 39mm case size.
- Case Material: steel and rose gold PVD
- Water Resistance: 39mm diameter
![[WTS] For Sale – Longines HydroConquest Automatic (Ref. L3.649.4, Navy Dial) – €600 ONO Automatic 41mm with the navy blue dial.](https://preview.redd.it/2ly9oiu08djf1.jpg?width=640&crop=smart&auto=webp&s=94ce276e3e84139ce0c03f98ebb47c589b72f336)
![[WTS] Longines Hydroconquest Quartz 39mm - Very good condition - $500 shipped in US](https://preview.redd.it/ejmuo0hzn2jf1.jpg?width=640&crop=smart&auto=webp&s=503b2a27e4bbbd773cfd4a27b063e5c8c3c7def3)
![[WTS] Longines Hydroconquest GMT Black 41mm - Full set with extras $1850](https://preview.redd.it/pv3gnpd7agif1.jpg?width=640&crop=smart&auto=webp&s=69945eaad0d34b2f130def6d489e31cb18563521)
Longines Hydroconquest GMT Black 41mm - Full set with extras $1850
41mm Longines Hydroconquest GMT with full set of extras, including OEM rubber strap and two additional straps.
- Condition: Excellent
- Case size: 41mm
- Included extras: Longines black rubber strap, Longines style leather strap, orange cut-to-size strap

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