Longines HydroConquest Hydroconquest Chronograph Tachymeter Blue
Reference L3.651.4.96.6
About this watch
The Longines HydroConquest L3.651.4.96.6 is a luxury watch that exudes sporty elegance, perfect for divers and watch enthusiasts alike. Its striking blue dial and sturdy stainless steel case make it a standout timepiece. The watch boasts an impressive water resistance of up to 300 meters, ensuring it can withstand the rigors of daily wear and tear. Powered by Longines' caliber L667, this automatic movement offers a reliable chronograph function and 42-hour power reserve. With its versatile design suitable for various occasions, this watch is not just a timepiece but a statement piece. Whether you're in the office or out diving, the HydroConquest fits snugly on the wrist with its adjustable stainless steel bracelet.
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Key Features
- Stunning blue dial
- Water resistance up to 300 meters
- Reliable automatic movement
- Chronograph functionality
- Scratch-resistant sapphire glass
- Versatile design
- Adjustable stainless steel bracelet
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Chronograph Tachymeter Blue
- Reference
- L3.651.4.96.6
- Movement
- l667
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph
- Case
- Stainless Steel 41mm
- Dial Color
- Blue
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[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
![[WTS] Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700](https://external-preview.redd.it/VKjyJdZC4PwI2FtRzDvRTtaVQzMPIuXjuIXPXhUN9SY.jpeg?auto=webp&s=45e277aaaa84249364d40f735c3ac491c7b59286)
Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700
Two Longines watches for sale, the Conquest L3.776.4 and the HydroConquest L3.741.4.
- Condition: Very good
- Case size: 39 mm
- Year purchased: 2025
- Clasp wear: minor wear on clasp from being stored at work desk