Bremont expands their Supermarine Full Ceramic collection into the depths of the coldest oceans with a new interpretation in a Deep Blue tone.
After its massive rebrand, unveiled at Watches & Wonders 2024, Bremont has admittedly taken a massive leap of faith. But under the careful direction of CEO Davide Cerrato, the brand has, for the most part, succeeded. Once primarily known for its commitment to pilot aesthetics and aviation heritage, Bremont has since repositioned itself as a purveyor of extreme watches. Not the extremes of horology, at least not yet beyond its tourbillon references, but timepieces built to last as long as you do, if not longer, in any environment imaginable.
Perhaps most indicative of this philosophy is the Supermarine, one of its flagship collections and Bremont’s mainstay dive watch. Combining reliable mechanics, a robust exterior and practical yet interesting design cues has allowed it to gradually evolve into the catalogue staple it is today.
A subset of the collection is the Supermarine Full Ceramic, which utilises the same tough-as-nails silhouette in highly scratch-resistant, lightweight cases. Back in 2024, Bremont introduced the concept with a full black ceramic case, followed not long afterwards by the Jungle Green reference. This year, the brand continues to delve further into the model line with a brand-new edition inspired by the harshest, coldest areas of the world.
My Baby Blue
Though the Bremont Supermarine Full Ceramic Deep Blue is indeed a direct continuation of the subgenre, that doesn’t mean it’s exactly the same as its predecessors. At the same time, it doesn’t try to reinvent the wheel, retaining a 43mm case diameter, 50mm lug-to-lug measurement and 13mm case thickness. Certainly a big watch, that’s for sure, but its material of choice helps offset that bulk considerably.
If you’re unfamiliar, ceramic is both significantly lighter and far more scratch-resistant than standard stainless steel. Of course, manipulating ceramic into any shape, let alone a watch case, is an arduous endeavour, but it’s something Bremont has become perfectly accustomed to.
Where necessary, the watch also incorporates several blue PVD-coated titanium components, offering similar strength while keeping the weight down on the wrist. Its durability is further underscored by a whopping 500 metres of water resistance, which is also why it comes equipped with a helium escape valve for saturation divers.
The watch is available with one of three straps, all of which are priced equally, so there’s no need for buyer’s remorse. The choice comes down entirely to personal preference. The standard configuration, as shown here, features a blue-black rubberised leather strap, keeping the blue aesthetic completely uniform. If you want something more utility-driven, there’s also a black rubber strap to match the dial.
But if neither takes your fancy, or you’d prefer to match both the case and dial, look no further than the black-and-blue NATO fabric strap, complete with a hook-and-loop fastening system. Whichever one you choose, though, there’s always potential for change. Bremont includes interchangeable spring bars with each model, except for the NATO version, which simply threads through conventional spring bars.
Wave After Wave
Once again, the new Bremont doesn’t do much differently with its dial design. Upon closer inspection, however, and in practice, it executes its features incredibly well. While other Supermarine Full Ceramic models favour a horizontal gradient finish, the Deep Blue returns to the black 3D wave-pattern dial seen on the 2024 reissue.
Unlike the uniform or linear wave patterns found on other dive watches, Bremont’s design features a wider, matte-textured stamped pattern that catches light and shadow dynamically. Combined with a set of crosshair-like quarter-hour indices, it adds plenty of visual intrigue to an otherwise tool-oriented timepiece.
Beyond these features, the Supermarine Full Ceramic Deep Blue retains the pragmatic design elements expected of a dive watch. All the indexes, alongside the black sword-and-arrow handset, are filled with a generous amount of lume, framed by a white printed minute track on a raised chapter ring. Perhaps my favourite detail, though, is the orange contrast that appears intermittently throughout the dial text. Not only is orange my favourite colour, but blue and orange are incredibly complementary, eye-catching tones. That’s why you see them on every movie poster you come across!
British Engineering
As with any dive watch, turning the Supermarine Full Ceramic Deep Blue around reveals a closed caseback. Finished in blue PVD-coated titanium, it’s far from boring, featuring a decorative depiction of the world’s oceans. It took me a while to make it out at first, but it’s nice to see Australia appear once again on a watch built overseas. In any case, the movement inside is where the Deep Blue differentiates itself from its predecessors. It houses the Cal. BB64AH, a new automatic movement based on Sellita’s SW300-1 architecture.
With a 4Hz (28,800VpH) beat rate and a 56-hour power reserve, it’s a departure from the previously used Cal. BE-92AV, which was based on similar ETA/Sellita architecture. This isn’t the first time the Full Ceramic line has undergone such a change. The 150-piece limited-edition Polar White made the switch in late 2025, but the Deep Blue now brings the movement into the permanent catalogue. Primarily, the switch to the Cal. BB64AH has increased the power reserve from 50 to 56 hours. While it’s not the most mind-boggling jump, Bremont has once again opted to maintain a reliable foundation while gradually improving the way its watches perform over time.
Initial Thoughts
This release is about as new-age Bremont as a watch can get. With a keen eye for sturdy, tool-oriented timekeeping, the modern brand hasn’t attempted anything overly ambitious or risky with the Supermarine Full Ceramic Deep Blue. Yet that’s not the job of this watch. Leave the big risks to more open canvases like the Terra Nova, Supernova and Altitude lines. What it lacks in outright flash, however, it more than makes up for in substance.
Ceramic isn’t an easy material to work with, nor is it as shatter-resistant as steel or titanium. Yet the Henley-on-Thames brand has taken this challenging case material and integrated it into a watch tailor-made for extreme environments. Through the strategic use of titanium, fine craftsmanship and reliable movement manufacturing, it still manages to take the big hits and come back asking for more, with barely any evidence that it’s been hurt.
References & Specifications
| Feature | Specification |
|---|---|
| Reference | SM43-DT-BLCER-BK-L-S (Leather) SM43-DT-BLCER-BK-R-S (Rubber) SM43-DT-BLCER-BK-N-S (NATO Fabric) |
| Dimensions | 43mm case diameter x 50mm lug-to-lug x 13mm thickness |
| Case | Deep Blue ceramic & titanium |
| Dial | Black with 3d wave pattern |
| Crystal | Sapphire |
| Caseback | Closed, blue PVD titanium |
| Movement | Automatic Cal. BB64AH with date complication |
| Power Reserve | 56h |
| Beat Rate | 4Hz / 28,800VpH |
| Water Resistance | 500m / 50bar |
| Strap/Bracelet | Interchangeable blue & black leather/rubber strap with pin buckle Interchangeable black rubber strap with pin buckle Black & blue NATO fabric strap with hook-and-loop system |