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] Reduced! Longines Hydroconquest 41mm ceramic, LNIB literally spotless](https://external-preview.redd.it/ShlNgP51p_yhYG-wehlS2eH7T9a9Ro_Hs61ykEYXaOE.jpg?auto=webp&s=9a84ec950f80c0b57da96ba89c60c9a47ac92274)
Reduced! Longines Hydroconquest 41mm ceramic, LNIB literally spotless
This is a 41mm Longines Hydroconquest with a blue dial and blue ceramic bezel. It has not been worn extensively and comes with the original box and papers.
- Condition: Like new in box
- Diameter: 41mm
- Bezel material: blue ceramic
![[WTS] Longines HydroConquest – Ceramic Bezel 39mm, 2029 Warranty](https://preview.redd.it/u8pqdjfojjvf1.jpg?width=640&crop=smart&auto=webp&s=e85b94b2efaa7655e7581195fddf3e0228d49d97)
Longines HydroConquest – Ceramic Bezel 39mm, 2029 Warranty
A black dial Longines Hydroconquest Ceramic Bezel in 39mm size, bought new in October 2024.
- Condition: Great condition on the case, crystal, and dial. Minor scratches from daily wear are visible on the bracelet and buckle.
- Warranty Valid Until: October 2029
- Size: 39mm
![[WTS] Longines Hydroconquest 41](https://preview.redd.it/i5w1it029dvf1.jpg?width=640&crop=smart&auto=webp&s=a870460418734ae107dff571be0b34809b121cb3)
Longines Hydroconquest 41
The Longines Hydroconquest 41 features a black dial and green ceramic bezel, comes with full kit, box, papers, warranty, and original purchase receipt.
- Condition: essentially unworn
- Shipping: CONUS only
![[WTS] BNIB Longines HydroConquest](https://preview.redd.it/3j42kl60ycvf1.jpg?width=640&crop=smart&auto=webp&s=c664df9208171d8fa29e7803820f7a8c31d484dd)
BNIB Longines HydroConquest
The Longines HydroConquest is a stylish and functional dive watch designed for everyday wear. It features a stainless steel case with a sleek design and a water-resistant construction.
- Condition: Brand new in box (BNIB)

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