Collection: Longines HydroConquest 2026

The Longines HydroConquest has been a mainstay of the brand's dive watch lineup since its debut in 2007, known for blending sporty performance with understated Swiss elegance. For 2026, Longines gave the collection its most significant redesign to date, refining the case, dial, and bracelet while keeping the core dive watch specs that made it popular in the first place.

The redesigned HydroConquest is available in slimmer 39mm and 42mm stainless steel cases, both measuring a relatively slim 11.7mm thick for a 300-meter dive watch. The dial has been cleaned up, replacing the previous generation's bold Arabic numerals with more contemporary applied indexes finished in Super-LumiNova for low-light legibility, and the ceramic unidirectional bezel now comes in five color options, including new green and frosted blue finishes. Inside is the automatic Longines Caliber L888.5, featuring a silicon balance spring for improved anti-magnetic resistance and a 72-hour power reserve, still paired with a screw-down crown and scratch-resistant sapphire crystal. The lineup also introduces a new fine Milanese mesh bracelet alongside an updated H-link steel bracelet, both with on-the-fly micro-adjustment clasps for a more precise fit.


King Jewelers carries the new Longines HydroConquest 2026 models in both 39mm and 42mm. Every Longines watch purchase includes free shipping, and our team can help you compare the 2026 dial colors, bezel finishes, and bracelet options in person at our Green Hills showroom in Nashville or online at kingjewelers.com.

Origins: Longines' Modern Answer to the Dive Watch
The Longines HydroConquest debuted in 2007 as the sport-diving cornerstone of Longines' broader collection, built to carry forward nearly two centuries of Swiss watchmaking heritage (Longines was founded in Saint-Imier in 1832) into a genuine, capable dive watch. Since its introduction, the HydroConquest has become one of the best-selling models in the Longines lineup, known for blending real diving specifications, 300 meters of water resistance and a proper rotating bezel, with a level of finishing and price positioning that made it a popular "gateway" Swiss dive watch for collectors moving beyond mass-market brands.

Over its first generation, the HydroConquest saw incremental design refreshes and material upgrades, gaining ceramic bezel inserts and expanding into GMT functionality with the HydroConquest GMT in 2023, a launch that would ultimately set the design direction for the collection's most significant overhaul to date.

The 2026 Redesign: A Ground-Up Reengineering
For 2026, Longines gave the HydroConquest its most substantial redesign since its 2007 debut, moving the collection's design language in line with the GMT model introduced three years earlier. Key changes include:

Slimmer case profile — Now offered in 39mm and 42mm, both measuring a relatively slim 11.7mm thick for a 300-meter-rated diver, down slightly from the previous 41mm-only generation

Redesigned dial — Bold oversized Arabic numerals replaced with cleaner, more contemporary applied indexes finished in Super-LumiNova

New ceramic bezel colors — Expanded to five colorways, including new green and frosted blue options, with an audible ratcheting click borrowed from Longines' Ultra-Chron model

Upgraded movement — The automatic Longines Caliber L888.5 (ETA-based, exclusive to Longines) adds a silicon balance spring for improved anti-magnetic resistance and a 72-hour power reserve

First-ever Milanese mesh bracelet — Offered alongside an updated H-link steel bracelet, both featuring on-the-fly micro-adjustment clasps

New campaign — Launched with actor Henry Cavill, filmed on the coast of Tenerife

The redesign also introduced a limited-edition HydroConquest Commonwealth Games 2026 model, capped at 2,026 pieces per case size, underscoring how central the 2026 relaunch was to the brand's marketing push for the year.

What Defines the HydroConquest Today
Every 2026 HydroConquest retains the core dive watch specs collectors expect: a screw-down crown, sapphire crystal with anti-reflective coating, a unidirectional rotating bezel, and 300 meters of water resistance, all housed in stainless steel. The redesign focused on refinement rather than reinvention, sharper case proportions, a cleaner dial, and genuine mechanical upgrades, while preserving the value-forward positioning that made the HydroConquest a modern classic in the first place.

At King Jewelers
King Jewelers carries the new Longines HydroConquest 2026 models in both 39mm and 42mm. Every Longines watch purchase includes free shipping, and our team can help you compare the redesigned dial colors, bezel finishes, and bracelet options in person at our Green Hills showroom in Nashville or online at kingjewelers.com.

The newly redesigned HydroConquest is available in 39mm and 42mm cases, with five ceramic bezel colors and a choice between the classic H-link bracelet or the collection's first-ever Milanese mesh bracelet. King Jewelers carries the full 2026 lineup.

HydroConquest 39mm — Slimmer redesigned case, ceramic bezel in 5 colorways, L888.5 movement with silicon balance spring, 72hr power reserve. The size collectors are gravitating toward for everyday wearability.

HydroConquest 42mm — Same movement and specs in a bolder case, more wrist presence for larger frames.

H-link bracelet models — Updated steel bracelet with on-the-fly micro-adjustment clasp.

Milanese mesh bracelet models — The collection's first-ever mesh bracelet option, removable links for a precise, flatter fit.