Written By Guest Contributor: Zahra Hemraj
Much like exploring the northern tip of Ontario’s Bruce Peninsula, the new lineup of Longines HydroConquest seems familiar, but feels new when you explore more.
The Longines HydroConquest traces its lineage to exploration and nature. The Conquest, introduced in 1954 as Longines’ first collection to receive trademark protection in Switzerland. Conquest was built on one idea: a watch you could wear through anything a modern life threw at you.
Enter The New Longines HydroConquest
The Longines HydroConquest launched in 2007 and took that idea under the depths of the water. With 300 metres of water resistance integrated into a collection built for versatility.
The 2018 generation added ceramic bezels and refined the proportions, while 2023 brought a more significant overhaul and the collection’s first GMT, expanding the theme of exploration and travel to a worldwide focus. The newly released 2026 Longines HydroConquest continues where the previous generations have left off. Each generation has added without erasing the essence of what came before. This HydroConquest model feels like the collection settling into itself: a proper dive watch, but not boxed in by what a dive watch is supposed to look like.
The Two Sizes of The Longines HydroConquest
The case tells that story in numbers. Both the 39mm and 42mm references run a relatively thin 11.70mm, with lug-to-lug measurements of 48.10mm and 51.20mm. For a watch rated to 300 metres, those are slim numbers. This is a diver that slides under a tailored cuff and moves from Saturday to Monday without anyone clocking the switch.
The Newly Adapted Milanese Mesh Bracelet
I usually start with the dial. Not this time, the bracelet is where the 2026 HydroConquest made its first strong impression on me.
Several references come on the H-shaped steel link bracelet introduced with the HydroConquest GMT. It does the job and is pretty standard amongst dive watches. It was well finished, classically proportioned, double-folding safety clasp, micro-adjustment. You also have the ability to have the Longines HydroConquest on the Milanese mesh bracelet, the first time it’s shown up on a model in the HydroConquest lineup.
Fully brushed stainless steel, polished sides, tapered toward the clasp and gives it a much more formal feel.
Milanese mesh on a 300-metre dive watch shouldn’t work on paper. It makes the thing feel like jewellery as much as equipment. The bracelet doesn’t make the watch less capable. It makes it more interesting and eye-catching.
A Cleaner, Revised Dial And Sharper Ceramic Bezel
The dial is where the biggest visual change happened. The oversized Arabic numerals at 6, 9, and 12 that defined earlier generations are gone, replaced by geometric applied indices all the way round. Eleven of them to be exact. All rhodium-plated, polished, treated with Super-LumiNova.
The layout reads a lot cleaner, and it brings HydroConquest closer to the GMT model visually. It’s also a real upgrade. Much more of the dial now carries lume and comes to life in the dark, which matters once you’re actually underwater in low light and poor conditions. The sapphire crystal has multi-layer anti-reflective coating on both sides, so glare doesn’t get you from either angle and makes for a more pleasant viewing experience every time you glance at it.
You get polished lacquered blue, black, and green dials, plus a frosted-blue sunray. Five ceramic bezel colours: black, blue, slate grey, verdant green, luminous blue. The dials and bezels are different materials that catch light differently, and Longines paired them carefully enough that none of the combinations feel like an afterthought.
The frosted-blue dial shows up twice, as we probably would expect given it’s such a desirable colour in the watch industry right now. It almost has a colour that you would find up in the waters in Tobermory, an attention grabbing hue that feels more tropical. A kind of watch you would find accompanying a bathing suit in the Caribbean.
A standard version on Milanese mesh, and a boutique/e-commerce exclusive on the H-link bracelet with a dark-blue ceramic bezel. Same dial, different feel entirely.
The bezel action has been reworked too, borrowed from the Ultra-Chron Diver for a sharper click. Each insert has a Super-LumiNova capsule at the zero marker. Not only functional at depth, it doubles as a nice visual detail on the surface.
The Movement Inside The New Longines HydroConquest
The new HydroConquest runs on the Longines-exclusive Calibre L888.5: self-winding, silicon balance-spring, 21 jewels, 25,200 vibrations per hour, and provides an impressive power reserve of up to 72 hours. At that power reserve, you can leave it on the dresser Friday night and it’s still running Monday morning just as your espresso machine, that is too justifiably expensive, is filling up your coffee cup.
The silicon balance-spring also pushes magnetic resistance past the ISO 764 standard — worth having when your watch spends its life next to a laptop, a phone, and a set of speakers.
Longines backs the movement with a five-year guarantee. The caseback carries a planisphere engraving and the Longines logo, a detail carried over from the GMT model lineup.
Reaching For The Green Longines HydroConquest First
When I handled the collection, the Green Longines HydroConquest dial stopped me first.
It’s a polished lacquered finish that looks even better. In direct light it’s rich, verdant, confident. In a dim room it goes quieter, more complicated. Not casual, not formal. Deliberate. Put this on in the morning without knowing what the day holds, and the colour does the deciding for you. It gets noticed without hijacking the room.
The blue on Milanese mesh might be the one that actually explains this collection, though.
The blue ceramic bezel against the black lacquered dial reads brighter and more playful than the all-blue configuration, and the mesh gives the whole watch a softer, more fluid feel on the wrist. If the green is the one I fell for immediately, the blue on mesh is the one that made the redesign click.
Two combinations, two completely different watches, and somehow it’s still one collection.
The Longines HydroConquest: Not Your Average Dive Watch
In Canada, the 2026 Longines HydroConquest starts at $2,900 CAD on the H-link steel bracelet, which includes the boutique and e-commerce exclusive frosted-blue model. While adding more of a formal feel with the Milanese mesh bracelet brings the pricing up to $3,100 CAD.
For that money, there is a lot of value. Starting with the 300 metres of water resistance, the five ceramic bezel colours, a much, much cleaner dial, a silicon balance-spring movement with 72 hours of reserve, and two bracelet options that feel like two different watches.
Longines didn’t reinvent the dive watch here. They made it easier to wear with a design that I think more people will enjoy.
As for exploring the deeper waters of Canada, I’ll get there eventually. Time to plan the trip, get PADI-certified, go see what the glass-bottom boats and the cocktail-filled catamarans can’t reach.
I already know what’ll be on my wrist when I do.
For more information about the Longines HydroConquest 2026, be sure to visit their website or step into a local retailer to try it on for size.
Photos: Longines
Read More Luxury Travel And Fashion News
