There were already Jungle Green, Tactical Black, and Polar White versions of this watch, and now there’s a fourth variation. The Royal Marine-approved Supermarine Full Ceramic Deep Blue is an aquatic-colored extension of Bremont’s dive-watch collection. This limited edition of 250 pieces has a colder, darker look inspired by the point where ocean and ice meet.

The 43mm Supermarine Full Ceramic debuted in 2024, marking Bremont’s move toward a new generation of high-performance dive watches built around ceramic, titanium, and plenty of water resistance. The Deep Blue used the same formula as its Jungle Green, Tactical Black, and Polar White brothers, just in a different colorway that gives it a colder, darker look.

Bremont Supermarine Full Ceramic Deep Blue head on against icy background

The Royal Marine-approved Bremont Supermarine Full Ceramic Deep Blue

As a light and highly scratch-resistant material, ceramic makes sense for a dive watch. It can also take a reasonable beating, but that goes for almost any watch. You could say a ceramic dive watch is easygoing because its lightness makes it so comfy to wear. Manufacturing it, however, is certainly not easy. Ceramic is notoriously demanding to manufacture, with very little room for error once machining, shaping, and finishing come into play.

angled view of Bremont Supermarine Full Ceramic Deep Blue

Bremont had some time to practice, though. There were already versions of the Supermarine black and green ceramic. The Supermarine Full Ceramic Deep Blue comes in a shade befitting a dive watch, and it has the skills to back it up. This 43 × 50 × 12.98mm timepiece can dive 500 meters deep and features a titanium inner case and a helium escape valve. Its ceramic exterior is matched with a PVD-coated unidirectional titanium bezel with a knurled edge and a blue ceramic bezel insert.

A black wave-effect dial continues the underwater theme without becoming too decorative. Trapezoidal hour markers visually flow inward from the bezel, as if to meet in imaginary naval-inspired crosshairs in the center. The black-gold-plated hands and markers are filled with blue-emitting Super-LumiNova, while the date display at 3 o’clock uses a black disc to help it blend in.

Bremont Supermarine Full Ceramic Deep Blue on wrist, fingers on bezel

A strap monster by nature

Three Supermarine Full Ceramic Deep Blue references are available. The difference between them is the straps. If you’re not spending too much time in the water, you might opt for the black-and-blue woven fabric NATO-style strap. The blue rubber strap with an embossed texture and leather lining is the dressiest of the three, and the most instrumental choice is the black rubber chevron strap.

Bremont Supermarine Full Ceramic Deep Blue on wrist

To ensure that the ceramic Supermarine is a proper tool watch, Bremont conducted some field testing. When the Full Ceramic collection debuted, Bremont ambassador Aldo Kane took the Jungle Green and Tactical Black versions on scientific missions in jungle environments. Kane, a former Royal Marine and veteran of expeditions in some distinctly unfriendly parts of the world, headed somewhere rather different for the Deep Blue — Iceland. There, the watch accompanied him into the freezing waters of glacial lakes and onto glaciers, with mountain terrain and unpredictable weather thrown in for good measure.

Aldo Kane wearing the Bremont Supermarine Full Ceramic Deep Blue in Iceland

Now, what strap do you think he chose for this Supermarine? I would’ve guessed the black rubber one. In the pictures, though, he’s wearing the blue rubber-and-leather strap with the contrasting white stitching. Brand ambassadors can have their strap changed at any time, I guess. They don’t worry too much about water and sweat damaging the leather lining of a strap.

Supermarine Full Ceramic Deep Blue on its side with carabiner

Final thoughts and pricing

Both Kane and the Supermarine Full Ceramic Deep Blue survived Iceland, which might reassure those in the market for a ceramic dive watch. As mentioned, Bremont will produce 250 pieces of this latest Supermarine. It’s a 500m-water-resistant watch that talks the talk and walks the walk in an Arctic color scheme that looks just as great with a specialized thermal outfit and goggles as with denim and sneakers.

The Bremont Supermarine Full Ceramic Deep Blue retails for €7,750 / US$7,400 / £6,450. The watch’s design and price bring the 41mm Tudor Black Bay Ceramic to mind. That watch costs €7,110 on a bracelet and €5,630 on a leather-and-rubber strap. There’s also a black ceramic Longines Hydroconquest in the same 43mm size as the Bremont, but it retails for €4,600. The blue Supermarine is certainly diving into competitive waters. Can the blue-and-black colorway, nicely detailed dial, LE status, and 500m depth rating persuade you? Oh, and it’s Iceland-proof.

Watch specifications

Brand
Model
Supermarine Full Ceramic Deep Blue
Reference
SM43-DT-BLCER-BK-L-S (rubber-and-leather strap) / SM43-DT-BLCER-BK-R-S (black rubber strap) / SM43-DT-BLCER-BK-N-S (NATO-style strap)
Dial
Black with 3D wave pattern, applied indexes with blue-glowing white Super-LumiNova, flange with white and orange printed minute track, date window at 3 o’clock with black disc, black-gold-plated hands with blue-glowing white Super-LumiNova
Case Material
Matte blue ceramic with titanium inner container, unidirectional titanium PVD-coated bezel with blue ceramic insert, helium escape valve, screw-down crown with guards
Case Dimensions
43mm (diameter) × 50mm (lug-to-lug) × 12.98mm (thickness)
Crystal
Domed sapphire with antireflective coating
Case Back
PVD-coated titanium, screw-in
Movement
BB64AH (Sellita SW300-1A base): automatic with manual winding and hacking seconds, 28,800vph (4Hz) frequency, 56-hour power reserve, 25 jewels, Glucydur balance wheel, Anachron balance spring, Nivaflex mainspring
Water Resistance
500 meters
Strap
Black and blue NATO-style (22mm width), blue embossed rubber with leather lining and quick-release pins, or black rubber with quick-release pins
Functions
Time (hours, minutes, seconds), date, 60-minute dive bezel
Price
€7,750 / US$7,400 / £6,450
Special Note(s)
Limited to 250 pieces