Longines HydroConquest Hydroconquest Quartz 39 Black
Reference L3.640.4.56.6
About this watch
The Longines Hydroconquest Quartz 39 Black is a stunning timepiece that masterfully blends functionality with style. Founded in 1832, Longines has built a legacy around precision and elegance, known for their rich history and involvement in sports timing. The Hydroconquest collection is designed specifically for water sports and diving enthusiasts, emphasizing performance, reliability, and durability. This watch boasts a sleek black dial, stainless steel case, and rotating bezel marked from 0 to 60, adding to its sporty aesthetics. With a water resistance of up to 300 meters, you can rely on it to withstand the elements. At the heart of the Hydroconquest is the Longines caliber L263, a quartz movement based on the ETA 955.412, providing precision and minimal maintenance. Equipped with hours, minutes, seconds, and date display, this watch covers all the basics. Its versatile design makes it suitable for both casual and formal occasions, while its comfortable stainless steel bracelet feels secure and easy to operate.
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Key Features
- Quartz movement based on ETA 955.412
- Water resistance up to 300 meters
- Sleek black dial with stick and dot indexes
- Rotating bezel marked from 0 to 60 for diving
- Stainless steel case with sapphire glass
- Date display and analog display for easy readability
- Comfortable stainless steel bracelet with secure clasp
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Quartz 39 Black
- Reference
- L3.640.4.56.6
- Movement
- l263
- 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