Longines HydroConquest automatic ice blue dial milanese bracelet 39 mm

The story behind it

Since its launch in 2007, the HydroConquest collection has embodied a distinctive vision of the diving watch according to Longines: that of an instrument capable of meeting the highest technical standards while maintaining a natural elegance, true to the Maison’s DNA. A philosophy inherited from the Conquest collection, the first line registered by Longines in 1954, originally designed as a versatile and refined everyday watch.

With the HydroConquest, this ambition takes on a new dimension. Designed to perform both in aquatic environments and urban settings, it has established itself over nearly two decades as a benchmark among modern dive watches, combining robustness, legibility and style without compromise.

In 2026, Longines takes a new step by unveiling a fully reinterpreted generation of its aquatic icon. More than an evolution, this new HydroConquest reflects a desire to refine every detail: revised proportions, cleaner design, optimized ergonomics. Inspired by the codes introduced with the GMT models, it adopts a more contemporary aesthetic, where legibility and balanced lines take precedence over traditional design cues. Here paired with a Milanese mesh bracelet, it asserts a more fluid and refined aesthetic while retaining the technical fundamentals that define the collection.

In this 39 mm format, this new version achieves a particularly well-balanced presence. Both discreet and present, it naturally fits the wrist and accompanies every moment of the day with ease. True to its DNA, it remains a genuine diving watch, water-resistant to 300 meters, while asserting rare versatility, capable of adapting to different uses and styles without ever feeling out of place.

A sport-chic watch for everyday life

Designed to accompany every moment of the day, this new HydroConquest reflects a modern approach to sports watchmaking, where performance and elegance coexist naturally. Inspired by the aquatic world, it retains the essential attributes of a robust and reliable timepiece, while moving beyond the strict codes of professional dive watches to better suit contemporary lifestyles.

Water-resistant to 300 meters, equipped with a unidirectional rotating bezel and offering optimal legibility in all conditions, it meets the demands of an active environment. Yet it is in its ability to go beyond this framework that it truly stands out. More than a technical instrument, this HydroConquest is designed as an everyday watch, capable of integrating seamlessly into a wide variety of situations.

On the wrist, its 39 mm case and refined ergonomics provide immediate comfort, while its Milanese mesh bracelet adds a sense of lightness and a more fluid elegance. This configuration enhances its versatility and makes it even easier to pair with any outfit. It accompanies a working day just as naturally as a weekend outdoors, a trip or a more formal occasion.

Through this new generation, Longines reaffirms its ambition to offer a contemporary sports watch, designed not for a single use, but to adapt to the rhythms and environments of modern life, with an added touch of refinement.

A luminous ice-blue dial contrasted by a black bezel

Completely redesigned for this new generation, the HydroConquest adopts a more contemporary aesthetic, inspired by the codes introduced with the GMT models. The 39 mm case, with smoother and slightly refined lines, offers a balanced silhouette and optimized ergonomics, enhancing wearing comfort while maintaining a controlled presence.

The sunburst ice-blue dial stands out with its subtle texture and shifting reflections, capturing the light with finesse. Brighter and more expressive, it brings a new visual dimension to the collection while highlighting the dial’s modern evolution, characterized by applied indexes with varied geometric shapes. This cleaner construction enhances legibility, further supported by the Super-LumiNova® treatment on the indexes and hands.

The black ceramic unidirectional rotating bezel structures the overall design through a sharp and elegant contrast. It emphasizes the clarity of the dial while providing a more defined visual reading, reinforcing the watch’s contemporary character. Scratch-resistant and perfectly integrated, it also offers precise handling, with an enhanced tactile feel resulting from the latest technical developments of the collection.

The result is a watch with a luminous and refined aesthetic, where the freshness of ice blue interacts with the depth of black. A combination that perfectly embodies the evolution of the HydroConquest: a contemporary sports watch designed to combine distinction, legibility and everyday versatility.

Movement and performance

At the heart of this HydroConquest beats the Longines L888.5 automatic calibre, an exclusive movement renowned for its reliability and performance suited to everyday demands. Equipped with a silicon balance spring, it offers increased resistance to magnetic fields, a key advantage in a modern environment where sources of interference are numerous.

This movement also stands out for its comfortable power reserve of up to 72 hours, allowing the watch to maintain autonomy over several days without being worn. Stable and precise, it accompanies every moment with consistency, whether in daily use or during more demanding activities.

Designed to last, the L888.5 calibre perfectly illustrates Longines’ approach: offering accessible, reliable and technically accomplished watchmaking, without compromising performance or user experience.

A Milanese bracelet with contemporary refinement

Offered for the first time in the HydroConquest collection, this version with a stainless steel Milanese mesh bracelet introduces a more elegant and sophisticated dimension. Inspired by historical bracelets, this type of construction is distinguished by its fine and regular weaving, offering a unique visual texture and a particularly refined look on the wrist.

Beyond its aesthetics, the Milanese bracelet stands out for its comfort. Flexible and lightweight, it naturally follows the shape of the wrist, providing a fluid feel and excellent breathability for everyday wear. This construction also allows for more precise adjustment, ideal for extended wear in all situations.

Its slightly tapered design towards the clasp enhances the overall balance of the watch while adding a contemporary touch. It is fitted with a double-security folding clasp, incorporating a practical micro-adjustment system, allowing easy adjustment for optimal comfort.

Elegant, comfortable and resolutely modern, this Milanese bracelet perfectly embodies the evolution of the HydroConquest. It transforms the sports watch into a more urban and refined piece, capable of adapting effortlessly to all styles and moments of the day.

A watch designed for every moment

With this new HydroConquest, Longines presents a watch capable of evolving effortlessly in all environments, combining performance and elegance with precision. In this Milanese bracelet version, it asserts a more refined dimension without renouncing its sporting vocation.

On the wrist, it naturally accompanies every moment of the day: a meeting, a trip, a weekend or a more formal occasion. Its balance of comfort, legibility and aesthetics makes it a highly versatile piece, designed to adapt to the rhythms of contemporary life without ever feeling out of place.

This ability to move seamlessly between different uses and styles perfectly reflects Longines’ approach, favoring durable, elegant and functional watchmaking. A vision embodied by this HydroConquest 39 mm, which stands as a modern and accomplished interpretation of the sports watch, enhanced here with an additional touch of refinement.