BREMONT SUPERMARINE All-Ceramic Deep Blue 500m Diver

A First Look at the Bremont Supermarine All-Ceramic Deep Blue Watch

The latest Supermarine all-ceramic model features a blue case and a black dial with a wave pattern, maintaining the collection's signature robust construction.
Bremont launched the 43mm Supermarine all-ceramic watch when it completely revamped its dive watch collection in 2024, subsequently releasing "Polar White" and "Jungle Green" limited editions, as well as a non-limited "Tactical Black" version. Now, Bremont adds a "Deep Blue" model to the lineup, introducing a new colorway to the Supermarine series—a collection defined by high-performance materials and a 500-meter water resistance rating. While the Deep Blue model features a fresh aesthetic, its technical specifications remain consistent with the rest of the Supermarine series; it represents an evolution rather than a radical reinvention.
The brand states that the contrast between the ocean and glaciers inspired the new color scheme, yet the watch’s appeal lies in more than just aesthetics. The blue ceramic case, black dial, titanium elements, and instrument-like details lend the new Supermarine a distinctively technical feel, staying true to the brand's heritage of creating "tool watches."

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The watch measures 43mm by 13mm and is crafted from blue ceramic and titanium. With a lug-to-lug distance of 50mm, it remains surprisingly lightweight at just 74 grams despite its substantial size. It features a unidirectional rotating titanium bezel with a blue ceramic insert and a domed, anti-reflective sapphire crystal. A screw-down crown sits at the 3 o'clock position, while a helium escape valve is located on the opposite side of the brushed titanium case middle. The case back, made of blue PVD-coated titanium, is engraved with a map of the world's oceans; the watch is water-resistant to 500 meters.
The Deep Blue model sports a black dial adorned with a striking 3D wave pattern and applied hour markers—featuring a mix of trapezoidal and circular shapes—outlined in black. Trapezoidal hour markers extend from the bezel onto the dial, forming a nautical-inspired crosshair at the center. Minute markers are printed in white on the black, sloping inner flange, with the 15, 45, and 60-minute marks—as well as the "London" inscription at 6 o'clock—rendered in orange. A date window sits at the 3 o'clock position, featuring a matching black date disc. Polished black-gold hour and minute hands indicate the time, while the arrow-tipped central seconds hand receives the same finish. Both the hour markers and hands are coated with blue Super-LumiNova.
Like previous all-ceramic Supermarine models, the Deep Blue is powered by Bremont’s BB64AH movement—a Sellita (SW300)-based automatic caliber offering a 56-hour power reserve and a frequency of 28,800 vibrations per hour. It is equipped with a Glucydur balance wheel, an Anachron hairspring, and a Nivaflex mainspring.
The watch is available with a choice of three straps: a black and blue woven NATO strap, a blue embossed rubber strap (with a leather lining), and a black rubber strap with a herringbone pattern. The latter two options feature a quick-release mechanism.

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Technical Specifications – BREMONT SUPERMARINE All-Ceramic Deep Blue 500m Diver
Case: 43mm diameter x 13mm thickness, 50mm lug-to-lug – Blue ceramic and titanium construction – Titanium unidirectional rotating bezel with blue ceramic insert – Screw-in crown – Helium escape valve – Domed anti-reflective sapphire crystal – Titanium case back engraved with an ocean map – Water resistance: 500 meters
Dial: Black 3D wave-pattern dial – Black outer dial ring with printed minute track – Applied hour markers – Black-plated hands – Hands and markers coated with blue Super-LumiNova – Date display at 3 o'clock
Movement: Calibre BB64AH (Sellita-based) – Automatic winding – 25 jewels – Glucydur balance wheel – Anachron hairspring – Nivaflex mainspring – Frequency: 28,800 vph – Power reserve: 56 hours – Central hours, minutes, and seconds; date display
Strap: Black and blue woven NATO strap – or blue embossed rubber strap (with leather lining) – or black rubber strap with herringbone pattern – 22mm lug width
Reference Models: SM43-DT-BLCER-BK-LS (Blue embossed rubber strap)
SM43-DT-BLCER-BK-RS (Black rubber strap)
SM43-DT-BLCER-BK-NS (NATO strap)