Longines HydroConquest Hydroconquest Automatic 39
Reference L3.648.4.56.6
About this watch
The Longines Hydroconquest Automatic 39 is a luxury dive watch that exudes elegance and sophistication. Its sleek design, robust build, and black dial make it a statement piece on the wrist. The watch's rotating bezel, marked from 0 to 60, is ideal for timing dives or other activities, while its sapphire glass ensures scratch-resistance and durability. Powered by the Longines caliber L633.5 automatic movement, this watch boasts a frequency of 28,800 beats per hour and a power reserve of 38 hours. With water resistance up to 300 meters, it's built for serious use, whether diving into the ocean or splashing around in the pool. The stainless steel bracelet feels sturdy yet comfortable on the wrist, making it perfect for all-day wear. This watch is not just a timekeeper, but an investment in style, functionality, and durability.
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Key Features
- Automatic Movement
- Water Resistance up to 300m
- Sapphire Glass
- Stainless Steel Case and Bracelet
- Rotating Bezel with 0-60 Markings
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Automatic 39
- Reference
- L3.648.4.56.6
- Movement
- l633-5
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- Stainless Steel 39mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines Hydroconquest 39mm](https://preview.redd.it/j0qiwnh0r71h1.jpeg?auto=webp&s=149e7e806f9c75a04bd76edd823cd16d02223f52)
Longines Hydroconquest 39mm
A Longines Hydroconquest diver's watch in excellent condition, featuring a 2026 movement and virtually no signs of wear.
- Condition: 9.6/10 - extremely clean example
- Movement: 2026
- Case condition: virtually no signs of wear
- Box included: true
![[WTS] Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint](https://preview.redd.it/nl26c159pr0h1.jpg?width=640&crop=smart&auto=webp&s=39aff2e3e4e52101bb87e437d2067e0379d65704)
Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint
A limited edition Longines Hydroconquest, purchased just a week ago and still under warranty.
- Condition: Mint
- Case Size: 39mm
- Limited Edition Quantity: 2026 pieces
- Warranty Length: five years
![[WTS] Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750](https://preview.redd.it/p69ddyorlr0h1.jpg?width=640&crop=smart&auto=webp&s=f7815d2daaf928def1c1cbf186377f9a75330779)
Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750
This Longines HydroConquest is an excellent daily-wear diver with great proportions and comfortable sizing, featuring a black dial and ceramic bezel. The watch is running well and keeping great time.
- Condition: Excellent daily-wear, shows wear from use on the bracelet
- Case Size: 39mm diameter
- Bracelet Type: black ceramic bezel + bracelet + WOE NATO
![[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 馃殺](https://preview.redd.it/rp8zbzy4sd0h1.jpg?width=640&crop=smart&auto=webp&s=21116ff5110f1b74d4b7bda264317dfe55f99585)
Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $600 馃殺
A quartz-powered diver's watch from Longines, featuring a black dial and two-tone yellow gold PVD finish on the 41mm case.
- Condition: Good (light scratches)
- Case size: 41mm
- Material: two tone yellow gold PVD
- Movement: quartz
![[WTS] Longines Hydroconquest 43mm (updated pictures)](https://preview.redd.it/11p4qnon560h1.jpg?width=640&crop=smart&auto=webp&s=3d165c7cb611511155a69847f097a14536111e8c)
Longines Hydroconquest 43mm (updated pictures)
This Longines Hydroconquest 43mm features a black dial on a stainless steel bracelet and has been worn only 4-6 times since its purchase. It comes with a full set, including the box, tags, warranty cards, and is still under Jomashop's 2-year warranty.
- Condition: Fantastic, worn 4-6 times
- Case size: 43mm
- Lug to lug: 53mm
- Thickness: 11.90mm
![[WTS] (brand new) Longines HydroConquest 39mm - $1800 shipped](https://preview.redd.it/hhn5x9gi950h1.jpg?width=640&crop=smart&auto=webp&s=127fbc96289090a876136eae3e19a3201923e901)
(brand new) Longines HydroConquest 39mm - $1800 shipped
This brand new Longines HydroConquest features a black dial, stainless steel case and bracelet, sapphire crystal with anti-reflective coating, and is powered by the L888.4 automatic movement.
- Condition: Unworn
- Case material: stainless steel
- Bracelet material: stainless steel
- Water resistance: 300m
![[WTS] 2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set](https://preview.redd.it/xz7b44mm8tzg1.jpg?width=640&crop=smart&auto=webp&s=b3daf2f6a5742e16f2a308812d6febe2533806d7)
2026 Longines HydroConquest 39mm - Black Ceramic - Newest Release - Full Set
The newly redesigned Longines HydroConquest in the highly sought-after 39mm size, featuring a refined dial and upgraded bracelet.
- Condition: Excellent Used Condition
- Size: 39mm diameter
- Thickness: ~11.9mm
- Lug-to-lug length: 47mm
![[WTS] Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.](https://preview.redd.it/q87s2169hozg1.jpg?width=640&crop=smart&auto=webp&s=ea163d3c8d0e0ecac6b09e09c73bf296af8af1fb)
Longines Hydroconquest 43mm L3.782.4.56.6-3 weeks owned.
A Longines Hydroconquest 43mm watch on a black dial with a stainless steel bracelet, now on an Ali Rubber strap.
- Condition: Mint condition, worn approximately 5 times
- Case size: 43mm diameter
- Lug to lug: 53mm
- Thickness: 11.90mm
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