Longines HydroConquest Hydroconquest Automatic 42 Commonwealth Games 2026
Reference L3.788.4.09.9
About this watch
The Longines HydroConquest L3.788.4.09.9 debuted in 2026 as part of the HydroConquest collection and was introduced in connection with the 2026 Commonwealth Games. The model follows the design direction established with the HydroConquest GMT in 2024, which revised the collection’s dial layout and finishing. The round stainless steel case measures 42 mm in diameter and is equipped with a screw-in crown and a unidirectional rotating bezel fitted with a ceramic insert. Water resistance is rated to 30 bar. The watch is fitted with a scratch-resistant sapphire crystal with several layers of anti-reflective coating applied to both sides.
The dial is finished in teal with a polished lacquered surface and a gradient effect. Applied indexes serve as hour markers, reflecting the updated HydroConquest design that no longer features Arabic numerals on the dial. Silvered polished hands indicate the time, while a date display completes the functional layout.
Power is provided by the Longines calibre L888, a self-winding mechanical movement beating at 25,200 vibrations per hour. The movement is equipped with a monocrystalline silicon balance spring and offers a power reserve of approximately 72 hours. It drives the central hours, minutes, and seconds together with the date indication.
The L3.788.4.09.9 is fitted with a black rubber strap secured by a double security folding clasp with a micro-adjustment system.
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Specifications
- Brand
- Longines
- Family
- HydroConquest
- Model
- Hydroconquest Automatic 42 Commonwealth Games 2026
- Reference
- L3.788.4.09.9
- Movement
- l888-2
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- 42mm
- Dial Color
- Teal
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
Longines Hydroconquest 39mm Black MINT
A Longines Hydroconquest 39mm in black, described as 'SUPER SUPER SUPER watch' with a comfortable bracelet and excellent bezel action.
- Condition: MINT, basically new
- Bracelet length: Super comfortable
- Bezel action: Great
Longines HydroConquest Green Dial Two Tone $1350 41mm
This Longines HydroConquest features a green dial and two-tone design.
Longines HydroConquest 43mm
A Longines HydroConquest 43mm diver watch for sale, with excellent timekeeping and minimal signs of wear.
- Condition: Pre-owned with normal wear
- Bracelet condition: normal wear with worn clasp
- Case condition: scratch-free except on the back
- Papers included: true
Longines HydroConquest 42mm Blue Ceramic Bezel – 2026 Card – Full Kit – Like New
The listing is for a Longines HydroConquest 42mm watch with a blue ceramic bezel, accompanied by a full kit and a 2026 card.
- Condition: Like new
- Material: Blue Ceramic Bezel
- Size: 42mm
Longines HydroConquest 39mm 2026 Commonwealth Games Limited Edition
This is a brand new, unworn Longines HydroConquest limited edition watch from the 2026 Commonwealth Games collection. It features a 39mm case and comes with various accessories.
- Condition: Brand New Unworn
- Case size: 39mm
- Limited edition status: One of 2026
Longines Hydroconquest 41mm ceramic Ref. L3.781.4.56.6
This Longines Hydroconquest features a 41mm ceramic case, black dial, and is sized for an approximate 7.4" wrist.
- Condition: Pre-owned with scratches on the case and bracelet
- Case material: ceramic
- Bracelet size: 7.4in diameter
- Warranty: no warranty included
Longines Conquest 39 mm $600 and Longines HydroConquest 39 mm $700
Two Longines watches for sale, the Conquest L3.776.4 and the HydroConquest L3.741.4.
- Condition: Very good
- Case size: 39 mm
- Year purchased: 2025
- Clasp wear: minor wear on clasp from being stored at work desk
Longines HydroConquest 41 – $975
This Longines HydroConquest 41 features a 41mm case, minimal wear, and comes with its box, papers, hangtag, and warranty card.
- Condition: Very Good Pre-owned Condition
- Case Size: 41mm diameter
- Bracelet Condition: hairlines throughout polished surfaces, some desk wear
Brand New Longines Hydroconquest Exclusive- 42mm- L3.788.4.98.6
The Longines Hydroconquest Exclusive features a 42mm case with a beautiful frosted blue dial and comes in brand new condition.
- Condition: Brand new, unworn
- Case size: 42mm