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
![[WTS] Longines Hydroconquest Green Dial Black Bezel](https://preview.redd.it/t5iimvsb3lsg1.jpg?width=640&crop=smart&auto=webp&s=0e0528c0c91782e685844db3df4e1ec370556a84)
Longines Hydroconquest Green Dial Black Bezel
- Condition: Perfect
- Year Of Purchase: August 2025
- Crown And Buckle Straps: 2 additional
- Shipping Info: US only
![[WTS] Longines Hydroconquest GMT - 41mm - Sunray Brown - Box and Papers - Excellent Condition](https://preview.redd.it/qivmazym0fsg1.jpg?width=640&crop=smart&auto=webp&s=4e49902d3641aa922643e2690a7207ece9b7d528)
Longines Hydroconquest GMT - 41mm - Sunray Brown - Box and Papers - Excellent Condition
The Longines Hydroconquest GMT features a 41mm stainless steel case, a true GMT movement, and a brown sunray dial with a brown ceramic bezel insert. It has a quick-adjust bracelet and a sapphire crystal with anti-reflective coating.
- Condition: Excellent, some minor hairline scratches on the bracelet
- Case size: 41mm
- Lug width: 21mm
- Thickness: 12.8mm
![[WTS] Longines Hydroconquest with Box+Papers](https://preview.redd.it/ufs3q92kwnqg1.jpg?width=640&crop=smart&auto=webp&s=2f5fe082ba368fba8b3e4d15ad1881f32276f91e)
Longines Hydroconquest with Box+Papers
A gently used Longines Hydroconquest in excellent condition, complete with box, papers, and original accessories.
- Condition: Near perfect with minor scratches on the back of the lugs
- Box And Papers: Included
- Bracelet Links: Extra links after sizing
- Warranty Card: Included
![[WTS] OEM Longines HydroConquest GMT 41mm Black Rubber Strap (21mm) w/ OEM Deployant Clasp – Excellent](https://preview.redd.it/mv87c1g0enqg1.jpg?width=640&crop=smart&auto=webp&s=2a32fe1a3788a77d32cc61bc45ef2cfbc01abbc4)
OEM Longines HydroConquest GMT 41mm Black Rubber Strap (21mm) w/ OEM Deployant Clasp – Excellent
A Longines HydroConquest GMT watch with a 41mm black rubber strap and deployant clasp, featuring a comfortable on-the-fly micro-adjust mechanism. The watch has been worn sparingly and shows minimal signs of wear.
- Condition: Lightly used
- Lug width: 21mm
- Clasp type: deployant
![[WTS] Longines Hydroconquest GMT - Sunray Brown - 41mm- Full Kit - Excellent Condition](https://preview.redd.it/74ipd0kadfqg1.jpg?width=640&crop=smart&auto=webp&s=11277a9581488bfda627dff42f1cb6f73f7fe61a)
Longines Hydroconquest GMT - Sunray Brown - 41mm- Full Kit - Excellent Condition
A Longines Hydroconquest GMT 41mm with a sunray brown dial and ceramic bezel insert, featuring an updated bezel and quick-adjust bracelet. It has a true GMT movement that keeps excellent time.
- Condition: Excellent
- Case size: 41mm
- Lug-to-lug: 49.2mm
- Thickness: 12.8mm
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