Longines HydroConquest Hydroconquest Chronograph Quartz
Reference L3.643.4.56.6
About this watch
The Longines HydroConquest Chronograph Quartz (L3.643.4.56.6) is a stunning timepiece that blends precision engineering with rugged aesthetics. Crafted from high-quality stainless steel, this watch exudes luxury and sophistication. With its impressive water resistance of 300 meters, it's perfect for divers and individuals who lead an active lifestyle. The black dial features mixed indexes and proprietary hands, providing excellent contrast and making it easy to read the time at a glance. The chronograph function adds a layer of versatility, allowing you to time laps or cook with precision. The watch feels substantial yet not cumbersome, making it suitable for extended wear. With its combination of quality materials, Swiss craftsmanship, and timeless design, this watch is a worthy investment for both collectors and newcomers alike.
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Key Features
- 41mm stainless steel case
- 300m water resistance
- Chronograph function with small seconds sub-dial
- Date display and quartz movement
- Sapphire crystal glass
- Rotating bezel with 0-60 scale
- Adjustable stainless steel bracelet
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Chronograph Quartz
- Reference
- L3.643.4.56.6
- Movement
- l541
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph
- Case
- Stainless Steel 41mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550](https://preview.redd.it/xctcalo9zk1h1.jpg?width=640&crop=smart&auto=webp&s=650ef270e5e02acf60bc86c32f9eda97d9f00f45)
Longines Hydroconquest Quartz Two Tone L3.740.3.56.7 - $550
This Longines Hydroconquest is a fun and capable diver that comes in the 41mm version, featuring a black dial and quartz movement.
- Condition: pre-owned with light scratches
- Case Size: 41mm
- Movement Type: quartz
![[WTS] Longines Hydroconquest 39mm black bezel/dial](https://preview.redd.it/hcrkd9h0gk1h1.jpg?width=640&crop=smart&auto=webp&s=222db94fb2131661aa9dba6f84c909ccca5404c9)
Longines Hydroconquest 39mm black bezel/dial
This Longines Hydroconquest 39mm features a black bezel and dial, is in excellent condition, and comes with its full kit including boxes, hangtags, warranty card, and owner's manual.
- Condition: Like-new
- Case size: 39mm diameter
- Box status: full-kit
- Warranty remaining: five years
![[WTS] Longines HydroConquest Two Tone Green Dial $1499](https://preview.redd.it/hphc8owmqi1h1.jpg?width=640&crop=smart&auto=webp&s=270753abc4debb68258ba2ec87a877355f71de20)
Longines HydroConquest Two Tone Green Dial $1499
Longines HydroConquest Two Tone Green Dial for sale
![[WTS] Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Sized, Never Worn | Full Kit | Warranty Card 5/8/26](https://preview.redd.it/vtb6vc2eki1h1.jpg?width=640&crop=smart&auto=webp&s=ecf33b0d47c8fa5982fd26fddc1205cdc129cf67)
Longines HydroConquest 42mm | 2026 Gen | Green Ceramic | Green Lacquered Dial | Ref. L3.788.4.06.6 | Never Sized, Never Worn | Full Kit | Warranty Card 5/8/26
This is the first real redesign the HydroConquest has seen in nearly a decade with thinner case and upgraded ceramic bezel with audible click.
- Condition: Never sized, never worn
- Movement: Calibre L888.5, automatic, silicon balance spring, 72hr power reserve
- Water resistance: 300m / 30 bar
- Box papers: Full double-box set with instruction manual and tags present
![[WTS] Longines Hydroconquest 41mm Black dial](https://preview.redd.it/r9zms2m3dc1h1.jpg?width=640&crop=smart&auto=webp&s=fb0ee84491b408eecf29c00533dbf94361e7658e)
Longines Hydroconquest 41mm Black dial
A Longines Hydroconquest 41mm with a black dial is being sold. The watch features an original box and bracelet, as well as two additional straps.
- Condition: Very good condition, a few scuffs on the sapphire but no scratches
- Case size: 41mm
- Bracelets: 2
- Straps: 2
![[WTS] Longines Hydroconquest 39mm L3.779.4.96.6](https://preview.redd.it/zub5je7bs71h1.jpg?width=640&crop=smart&auto=webp&s=c13e2690b5c678b496a1014ea9a0e708206ff81c)
Longines Hydroconquest 39mm L3.779.4.96.6
A Longines Hydroconquest 39mm with a frosted blue dial, this watch features a unique and stylish design.
- Condition: Like new
- Size: 39mm diameter
![[WTS] Longines Hydroconquest 39mm](https://preview.redd.it/j0qiwnh0r71h1.jpeg?auto=webp&s=149e7e806f9c75a04bd76edd823cd16d02223f52)
Longines Hydroconquest 39mm
A Longines Hydroconquest diver's watch in excellent condition, featuring a 2026 movement and virtually no signs of wear.
- Condition: 9.6/10 - extremely clean example
- Movement: 2026
- Case condition: virtually no signs of wear
- Box included: true
![[WTS] Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint](https://preview.redd.it/nl26c159pr0h1.jpg?width=640&crop=smart&auto=webp&s=39aff2e3e4e52101bb87e437d2067e0379d65704)
Longines Hydroconquest 39mm Limited Edition Commonwealth Games Mint
A limited edition Longines Hydroconquest, purchased just a week ago and still under warranty.
- Condition: Mint
- Case Size: 39mm
- Limited Edition Quantity: 2026 pieces
- Warranty Length: five years
![[WTS] Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750](https://preview.redd.it/p69ddyorlr0h1.jpg?width=640&crop=smart&auto=webp&s=f7815d2daaf928def1c1cbf186377f9a75330779)
Longines HydroConquest 39mm Automatic Black Ceramic Bezel + Bracelet + WOE NATO - $750
This Longines HydroConquest is an excellent daily-wear diver with great proportions and comfortable sizing, featuring a black dial and ceramic bezel. The watch is running well and keeping great time.
- Condition: Excellent daily-wear, shows wear from use on the bracelet
- Case Size: 39mm diameter
- Bracelet Type: black ceramic bezel + bracelet + WOE NATO