Longines HydroConquest Hydroconquest Automatic 39
Reference L3.648.4.16.6
About this watch
The Longines Hydroconquest Automatic 39, model L3.648.4.16.6, is an embodiment of style and functionality in the world of luxury watches. Founded in 1832, Longines has a rich history of watchmaking that marries tradition with innovation. This remarkable timepiece boasts a stunning design that seamlessly blends elegance and sportiness, making it suitable for both casual wear and formal occasions. The round stainless steel case features a polished finish that catches the light beautifully, while the pristine white dial exudes sophistication. The watch is equipped with a scratch-resistant sapphire crystal, ensuring its durability even with regular wear. At the heart of the Hydroconquest lies the Longines caliber L633.5, a robust automatic movement renowned for its reliability and accuracy. This movement boasts a frequency of 28,800 vibrations per hour, offering precise timekeeping that you can trust. With a water resistance of up to 300 meters (or 1000 feet), this watch is designed to withstand the pressures of deep-sea adventures. The unidirectional rotating bezel allows for accurate tracking of elapsed time underwater, while the stainless steel bracelet adds to its rugged aesthetic and comfort. This luxury watch offers excellent value for money, making it a fantastic choice for anyone looking to invest in a high-quality timepiece without breaking the bank.
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Key Features
- Longines caliber L633.5 automatic movement
- Stainless Steel case with polished finish
- Scratch-resistant sapphire crystal
- Water resistance up to 300 meters (1000 feet)
- Unidirectional rotating bezel for dive time tracking
- Stainless Steel bracelet for durability and comfort
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Automatic 39
- Reference
- L3.648.4.16.6
- Movement
- l633-5
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- Stainless Steel 39mm
- Dial Color
- White
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
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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
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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] 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] 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)
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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