Longines HydroConquest HydroConquest 41 Automatic Chronograph Stainless Steel / Black / Bracelet
Reference L3.744.4.56.6
About this watch
The Longines HydroConquest 41 Automatic Chronograph is a timepiece that perfectly balances functionality, style, and durability. This watch, known by its reference number L3.744.4.56.6, is part of Longines' renowned HydroConquest family and offers impressive features that make it stand out in the crowded field of dive watches. The round stainless steel case exudes durability while remaining lightweight on the wrist, making it suitable for both casual outings and formal occasions. The black dial features a mix of indexes and proprietary hands that enhance readability and contribute to the watch's overall aesthetic appeal. With luminous hour markers and hands, it ensures visibility even in low-light conditions. The chronograph sub-dials add complexity and functionality, allowing you to measure elapsed time with precision. Longines has carefully designed these elements to serve a purpose while adding to the watch's character. One of the standout features is its automatic chronograph movement, powered by the Longines caliber L688.2, boasting 27 jewels for accuracy and longevity. With a power reserve of 54 hours and a frequency of 28,800 vibrations per hour, you can trust this watch to keep ticking whether diving deep or enjoying casual days out. The HydroConquest does not disappoint in terms of durability, with a water resistance of 300 meters, making it ideal for divers. The stainless steel case and rotating bezel marked from 0 to 60 provide a robust structure and functional timing features. A sapphire crystal protects the watch from minor scratches, ensuring its clarity and transparency. When it comes to wearing a watch, comfort is key, and the HydroConquest 41 features an adjustable stainless steel bracelet that provides a snug fit on the wrist. With its impressive specifications, durable build, and elegant design, this watch is a reliable choice for anyone seeking a versatile timepiece.
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Key Features
- Longines caliber L688.2 automatic chronograph movement
- 300 meters water resistance
- 41.00 mm diameter stainless steel case
- Adjustable stainless steel bracelet for comfort fit
- Sapphire crystal for scratch resistance and clarity
Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- HydroConquest 41 Automatic Chronograph Stainless Steel / Black / Bracelet
- Reference
- L3.744.4.56.6
- Movement
- l688-2
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph, Column wheel
- Case
- Stainless Steel 41mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Longines HydroConquest GMT 41mm Black, Full Kit, June 2025](https://preview.redd.it/c4c7iqv7e9wg1.jpg?width=640&crop=smart&auto=webp&s=e250849b5d9c5e65f6e77a3d09a1db59c45552a5)
Longines HydroConquest GMT 41mm Black, Full Kit, June 2025
Up for sale is my mint condition Longines HydroConquest GMT, a full kit with box, papers, tags, and over 4 years left on the factory warranty.
- Condition: Mint condition
- Case dimensions: 41mm diameter, 49mm lug to lug, 12.9mm thickness
- Movement: L844.5 with 72hrs power reserve
- Water resistance: 300m
![[WTS] Longines Hydroconquest 39mm Black MINT](https://preview.redd.it/v4pffvhrc5wg1.jpeg?auto=webp&s=814fab44f946ceacdedaffaa381634bee5d33c82)
Longines Hydroconquest 39mm Black MINT
A mint condition Longines Hydroconquest 39mm in black with a super comfortable bracelet and excellent bezel action.
- Condition: MINT
- Bracelet type: Super comfortable bracelet
- Clasp type: Excellent on the fly clasp
- Bezel action: Great bezel action
![[WTS] Longines HydroConquest 39mm Green Ceramic Bezel 2026 NEW L3.779.4.06.6 – $2800 + shipping](https://preview.redd.it/aoihsdkp4qvg1.jpg?width=640&crop=smart&auto=webp&s=afddea4ac8c74bd6c345aacb7c77a1c4f9e694fc)
Longines HydroConquest 39mm Green Ceramic Bezel 2026 NEW L3.779.4.06.6 – $2800 + shipping
This Longines HydroConquest features a stunning green ceramic bezel and matching dial, with a 39mm size that wears well on the wrist.
- Condition: Brand new
- Case Size: 39mm diameter
- Bezel Material: green ceramic
![[WTS] 2026 Longines Hydroconquest 39mm - Grey Bezel / Black Dial](https://preview.redd.it/1iats6ttplvg1.jpeg?auto=webp&s=a3e1b3b3cb0efcf818e0cc8de77f1c55f05751aa)
2026 Longines Hydroconquest 39mm - Grey Bezel / Black Dial
This 2026 Longines Hydroconquest is a 39mm grey bezel/black dial watch, purchased directly from Longines and regularly worn. It's free of major scratches or dents but has minor wear on the back of one lug.
- Condition: Excellent to LNIB (like new in box)
- Bracelet length: up to an 8in wrist
- Bent link pin: one link pin is bent and unusable
- Included accessories: all original packaging, accessories, and paperwork
![[WTS] Longines HydroConquest Sunray Blue- L3.790.4.96.6](https://preview.redd.it/c9ai1o14ukvg1.jpg?width=640&crop=smart&auto=webp&s=19e13d80129d3c19dcadec2001aa99aec7c23fc0)
Longines HydroConquest Sunray Blue- L3.790.4.96.6
A brand new Longines HydroConquest with sunray blue dial, featuring a new box and papers.
- Condition: Brand new
- Box And Papers: brand new
![[WTS] Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested](https://preview.redd.it/uak0p5i0mkvg1.jpg?width=640&crop=smart&auto=webp&s=8674480795a645eee12b4e5f612f85a6f1aa1aad)
Longines HydroConquest GMT - Unworn, Full Set, Black Dial 41mm. The watch is in completely unworn condition and comes as a full set including box, papers, and all original accessories. Price:1700. UK-based. Happy to ship or meet depending on location. Dm if interested
The Longines HydroConquest GMT is a 41mm timepiece that comes as a full set including box, papers, and all original accessories. It is in completely unworn condition.
- Condition: Unworn
- Case Size: 41mm
- Set: Full set including box, papers, and all original accessories
![[WTS] Longines Hydroconquest GMT 41mm Black (Nov 2024)- $2950 AUD (Sydney, Australia)](https://preview.redd.it/5wo9wqsl5kvg1.jpg?width=640&crop=smart&auto=webp&s=ccc1fde86193d904de860341b6d3814c6f932b9a)
Longines Hydroconquest GMT 41mm Black (Nov 2024)- $2950 AUD (Sydney, Australia)
a black Longines Hydroconquest GMT watch with a 41mm case size.
- Material: Stainless Steel
- Diameter: 41mm
- Depth rating: 300m
![[WTS] Longines HydroConquest 41mm](https://external-preview.redd.it/gV1UVE_Cfj0p9G8IHrtNEhGnDKekTR0dsehjKb-xSBQ.jpeg?auto=webp&s=aef039e8455d0ad90034c67c96e71d7915588671)
Longines HydroConquest 41mm
A Longines HydroConquest 41mm watch with a blue sunburst dial, featuring a clean crystal and flawless dial.
- Condition: Excellent pre-owned condition
- Diameter: 41mm
![[WTS] Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,900](https://preview.redd.it/xq67uwuvhdvg1.jpg?width=640&crop=smart&auto=webp&s=b1b608ae8ff423df941f0594467244ac1d6a5780)
Longines Hydroconquest Chronograph 41 Ref. L3.783.4 – Travel Box & Manual | $1,900
This Longines Hydroconquest Chronograph is a high-performance Swiss diver's watch featuring a blue ceramic bezel and screw-down crown, powered by the calibre L688.2 column-wheel chronograph movement with a 54-hour power reserve.
- Condition: Very good with minor usage marks
- Case Size: 41mm x 51mm stainless steel case, 15.6mm thickness, 21mm lug width
- Movement: Longines L688.2 automatic column wheel chronograph with 27 jewels, 28,800 bph, and a 54-hour power reserve
- Water Resistance: 300m (30 ATM)