Some dive watches are tested in a pressure tank. The newest Bremont went to Iceland. To prove out the Bremont Supermarine Full Ceramic Deep Blue, the British brand sent its ambassador Aldo Kane, a former Royal Marine, to dive into freezing glacial lakes and cross the country’s vast ice fields, a far cry from the jungle missions where he had already put the Full Ceramic platform through its paces.
The Bremont Supermarine Full Ceramic Deep Blue, launched October 8, 2026, is a 250-piece, 43mm blue mono-block ceramic dive watch rated to 500 meters, with a helium escape valve, a black wave dial, and the automatic BB64AH movement with a 56-hour power reserve.
The result, launched on October 8, 2026, is a 250-piece limited edition that Bremont describes as the latest evolution of its Supermarine Full Ceramic collection. Its theme is right there in the brand’s own brief: a new colorway inspired by the meeting point of ocean and ice, built for the world’s harshest environments.
It also arrives at a moment when Bremont has been busy. The brand showed a full slate of new pieces at Geneva Watch Days this fall, which we rounded up in all the new watches Bremont presented at Geneva Watch Days 2026, and earlier this year it gave us the playful Altitude MB Meteor “Felix the Cat”. The Deep Blue is a different animal entirely: a serious tool watch in a color that has defined the season, as our look at the best new blue-dial watches of fall 2026 showed, except that here the blue lives in the case rather than on the dial.
Introducing the Supermarine Full Ceramic Deep Blue
Bremont calls the Full Ceramic the pinnacle of the Supermarine collection and its most technically advanced dive watch, and the case explains why. The 43mm case is a mono-block of blue ceramic, a material Bremont praises for being highly resistant to scratches and exceptionally lightweight while admitting it presents real manufacturing challenges. Soft ceramic powder is moulded and then sintered at 1,450°C under extreme pressure, a process that shrinks the case by 23% before it receives a sand-blasted matte finish.
Inside that ceramic shell sits a titanium inner case, and the construction is resolutely built for depth. The Deep Blue is water-resistant to 500 meters, with a helium escape valve and a screw-down crown. The bezel pairs a blue ceramic insert with a knurled titanium unidirectional surround, and the closed caseback is screw-in titanium with a blue PVD treatment. The case measures 43mm across, 50mm lug to lug, and 13mm thick, with 22mm lugs, and the head weighs just 74 grams.
In our view, that 74-gram figure is the quiet headline. A 43mm, 500-meter diver usually announces itself on the wrist; one built from ceramic and titanium should wear far lighter than its specifications suggest, which matters when the wearer is hanging from an ice axe.
The dial is where the Deep Blue earns its name. Against the blue case, Bremont sets a black dial with a three-dimensional wave pattern, and its trapezoid indexes flow from the bezel onto the dial to form a naval-inspired crosshair at the center. The applied indexes and the polished black gold hour, minute, and seconds hands are filled with white Super-LumiNova that glows blue, and a date window sits at 3 o’clock beneath a domed, anti-reflective sapphire crystal.
Turn the watch over, and the theme continues. The caseback is engraved with a map of the world’s oceans drawn from the Spilhaus projection, an ocean-centered view of the globe in which, as Bremont puts it, the oceans read as one connected body. It is a thoughtful detail for a watch inspired by the point where sea meets ice, and one its owner will rarely see once it is strapped on.
Powering it all is the automatic Caliber BB64AH, a 25-jewel movement with a Glucydur balance wheel, an Anachron balance spring, and a Nivaflex mainspring, beating at 28,800 vibrations per hour (4Hz) with a 56-hour power reserve. Bremont houses the movement in a titanium case and says it uses only high-grade Swiss mechanical movements, so the watch stays mechanical however far from a service center it travels.
That approach is very much in character. Bremont says it is driven by a relentless determination to create the world’s most capable tool watches, designed for the depths of the ocean, the peaks of high mountains, and the far extremities of the Earth, and relied on by explorers, adventurers, and the military alike. Its watches are hand built in the UK, at a manufacturing and technology center in Henley-on-Thames, and the Deep Blue’s spec sheet reads like a checklist written by exactly those customers.
Tested in Iceland
The field test is the real story of this release. Bremont lists the coordinates of its Icelandic trial on the launch page, 64°57′50.2″N, 19°1′16.2″W, and the itinerary was deliberately brutal: cold-water dives, exposed glacier climbs, and time high in the mountains in rough weather.
“Having already tested the Full Ceramic in the jungle, I knew how capable the Supermarine platform was,” says Aldo Kane, Bremont Ambassador. “Iceland presented a completely different challenge, taking us from extreme cold-water dives to exposed glacier climbs and high into the mountains in some fairly extreme weather.”
Coming from someone whose testing ground has ranged from rainforest to glacier, “fairly extreme” reads as typical understatement, and it is the sort of endorsement a tool watch should have to earn.
The Deep Blue joins an existing Full Ceramic family that already includes the Tactical Black and the Polar White, the latter itself a 150-piece edition. What sets this one apart, in our view, is that it pairs the Supermarine’s most capable case with its most considered design story, from the wave dial to the ocean-map caseback, without diluting the tool-watch brief.
Bremont offers the watch on three straps: a blue embossed rubber strap with leather lining, a black and blue woven fabric NATO, and a quick-release black rubber chevron strap, each 22mm wide. Our pick for a watch made to get wet is the rubber chevron, though the embossed rubber-and-leather option is the dressiest way to wear a blue ceramic diver.
The Bremont Supermarine Full Ceramic Deep Blue is limited to 250 pieces and is available now from Bremont, priced at $7,400 on any of the three straps. For a watch that has already been to the bottom of a glacial lake and back up an ice wall, it seems the ocean and the ice finally have a meeting point you can wear.
| THE WATCH | |
|---|---|
| Model | Bremont Supermarine Full Ceramic Deep Blue |
| Edition | Limited to 250 pieces |
| References | SM43-DT-BLCER-BK-R-S (rubber), SM43-DT-BLCER-BK-N-S (NATO), SM43-DT-BLCER-BK-L-S (rubber and leather) |
| CASE | |
| Material | Mono-block blue ceramic with titanium inner case |
| Diameter | 43mm |
| Length | 50mm |
| Thickness | 13mm |
| Lug width | 22mm |
| Bezel | Knurled titanium unidirectional bezel with blue ceramic insert |
| Caseback | PVD blue titanium, screw-in, engraved with a Spilhaus ocean map |
| Crystal | Domed anti-reflective sapphire |
| Water resistance | 500 meters (50 ATM), helium escape valve, screw-down crown |
| Weight | 74g (head only) |
| DIAL AND HANDS | |
| Dial | Black 3D wave pattern, applied indexes, date at 3 o'clock |
| Hands | Polished black gold |
| Lume | White Super-LumiNova (blue emission) |
| MOVEMENT | |
| Calibre | BB64AH, automatic |
| Jewels | 25 |
| Frequency | 28,800 vph (4Hz) |
| Power reserve | 56 hours |
| Components | Glucydur balance wheel, Anachron balance spring, Nivaflex mainspring |
| Functions | Hours, minutes, central seconds, date |
| STRAPS | |
| Options | Blue embossed rubber with leather lining; black and blue woven NATO; black rubber chevron (22mm, quick-release on rubber options) |
Timely FAQs
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