Longines HydroConquest Hydroconquest Quartz 39 Black / Red
Reference L3.688.4.59.6
About this watch
Welcome to our comprehensive review of the Longines Hydroconquest Quartz 39 Black / Red, model L3.688.4.59.6! This timepiece embodies luxury, precision, and adventure. With a rich history dating back to 1832, Longines has crafted a name synonymous with elegance and functionality. The Hydroconquest family personifies this ethos, featuring a bold design, scratch-resistant sapphire crystal glass, and an impressive water resistance of 300 meters. This quartz movement watch is highly reliable, offering precision that mechanical movements can only aspire to achieve. With a power reserve of approximately 26,280 seconds, you can expect it to keep ticking for a long time without the need for frequent adjustments. The rotating bezel allows easy tracking of dive time, while the date function adds practicality to its impressive design. Whether you're a seasoned diver or a casual watch enthusiast, this timepiece deserves a place in your collection.
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Key Features
- Quartz movement with 26,280-second power reserve
- 300-meter water resistance for diving and swimming
- Scratch-resistant sapphire crystal glass for protection
- Rotating bezel for easy dive time tracking
- Date function for added practicality
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Quartz 39 Black / Red
- Reference
- L3.688.4.59.6
- Movement
- l263
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- Stainless Steel 39mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines HydroConquest Blacked-Out USA Exclusive (Ref. L3.742.2.58.6) repost/reduced](https://preview.redd.it/8hpdnmoxl4cf1.jpeg?auto=webp&s=4140e6a068c8050285e41fe7516eb20e02228ed6)

>>REDUCED FURTHER<< LONGINES HYDROCONQUEST ALL CERAMIC
This Longines HydroConquest All Ceramic features a ceramic case and bezel, black ZrO2 dial, and is water resistant to 300m.
- Condition: MINT
- Diameter: 43mm
- Water resistance: 300m
- Strap: Longines rubber strap with deployant clasp
![[WTS] Longines HydroConquest Steel 44 Black Dial (Full-Set/Unpolished)](https://external-preview.redd.it/V1m61DmeisY_lPkFdd4O-w33fawThHHAzfRsKu8AZxI.jpg?auto=webp&s=5d3dd84d299e021fd3d66ba87825bf597bb25be7)
Longines HydroConquest Steel 44 Black Dial (Full-Set/Unpolished)
This Longines HydroConquest Ref. L3.841.4.56.6 is a full steel diver’s watch with robust build quality and enduring style.
- Condition: Full steel diver's watch in outstanding original condition with factory finish and minimal signs of wear
- Case size: 44mm diameter
- Bracelet length: fits wrists up to 8.5 inches (21cm)
- Box and papers included: yes
![[WTS] Longines Hydroconquest GMT](https://preview.redd.it/n4qovpnijiaf1.jpg?width=640&crop=smart&auto=webp&s=98e120aff03459525ccc0476905e099f3eb768d7)
Longines Hydroconquest GMT
This Longines Hydroconquest GMT is a full kit, minus the original NATO strap, and comes on an OEM Hydroconquest bracelet with 10 full and 1 half links.
- Condition: Pre-owned with minor wear
- Case Condition: clean
- Crystal Condition: clean
- Bracelet Condition: minor desk rash

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