Description
Bremont has given the Supermarine a full ceramic treatment in blue. Announced on 8 October 2026, the Supermarine Full Ceramic Deep Blue is a 500 m diver built around a blue ceramic case over a titanium inner structure, limited to 250 pieces, at EUR 7,750 (USD 7,400 before taxes).
It is the most technically interesting Supermarine in years, and the first to be built this way. The ceramic is not a bezel insert or a coating — it is the case itself, screwed down onto a titanium core that carries the threads and takes the stress, which is the only sane way to make a ceramic case rated to half a kilometre.
Design
The case measures 43 mm across, 13 mm thick and 50 mm lug to lug, and weighs 74 g — remarkably light for a 500 m diver, which is the point of the ceramic-over-titanium construction. The unidirectional bezel is titanium with a blue ceramic insert in a matte finish, and the domed sapphire crystal carries anti-reflective treatment. A screw-down crown sits at three o'clock alongside a helium escape valve.
The black dial is textured with a three-dimensional wave pattern, with applied trapezoidal and circular indices, a printed minutes track, an arrow-shaped marker at twelve, "London" at six and a date window at three. Hands are polished black-gold with blue-emission Super-LumiNova, matched on the indices. The caseback is blue PVD-coated titanium engraved with an ocean map. Three 22 mm strap options are offered — a black-and-blue woven NATO, blue embossed rubber with a leather lining, and a black rubber chevron — the last two with quick-release.
Specifications
- References: SM43-DT-BLCER-BK-L-S (embossed rubber with leather lining); SM43-DT-BLCER-BK-R-S (rubber chevron); SM43-DT-BLCER-BK-N-S (woven NATO)
- Case material: blue ceramic over a titanium inner case
- Case diameter: 43 mm
- Case thickness: 13 mm
- Lug-to-lug: 50 mm
- Weight: 74 g
- Bezel: unidirectional titanium with matte blue ceramic insert
- Crystal: domed sapphire with anti-reflective treatment
- Caseback: blue PVD-coated titanium, engraved ocean map
- Crown: screw-down at 3 o'clock, with helium escape valve
- Water resistance: 500 m
- Dial: black with 3D wave texture, applied indices, date at 3 o'clock, blue-emission Super-LumiNova
- Movement: Bremont calibre BB64AH, based on the Sellita SW300-1, automatic, 25 jewels
- Functions: hours, minutes, central seconds, date
- Frequency: 28,800 vph (4 Hz)
- Power reserve: 56 hours
- Straps: woven NATO, embossed rubber with leather lining, or rubber chevron; 22 mm lug width
- Limited edition: 250 pieces
- Price: EUR 7,750 / USD 7,400 before taxes, regardless of strap
- Announced: 8 October 2026
What's Exciting
Seventy-four grams is the headline. A steel 43 mm diver rated to 500 m with a helium valve will typically run 130 to 180 g on a strap; this one is roughly half that, and it gets there without the usual compromise. Ceramic is hard and scratch-proof but brittle and impossible to thread reliably, so a ceramic dive case normally means either a modest depth rating or a thick, heavy composite. Bremont's answer — a titanium inner case that takes the caseback threads and the crown tube, wearing the ceramic as an outer shell — puts the ductile material where the stress concentrates and the hard material where the wear happens.
The movement is the honest limit. The BB64AH is a Sellita SW300-1 under a Bremont designation, not a manufacture calibre, and at EUR 7,750 for 250 pieces that is the part buyers will argue about. The counter-argument is that the case is where the money and the engineering actually went, and it is a case nobody else is selling at this price. Royal Marine approval and a tested-in-Iceland story are marketing; the 74 g on a 500 m diver is not.
History
Bremont was founded in 2002 by brothers Nick and Giles English, named after the French farmer who sheltered them after an emergency landing, and built its early identity on aviation: the Martin-Baker ejection-seat collection, the ALT1 chronographs, the hardened Trip-Tick case. The Supermarine arrived in 2009 as the brand's dive line, taking its name from the manufacturer of the Spitfire, and has run from 300 m to 2,000 m over its various generations.
The company has been through significant change in recent years, with investment from Bill Ackman's family office in 2023 and Davide Cerrato's arrival as CEO, followed by a repositioning that trimmed the catalogue and sharpened the design language. The 2026 HMAF collection returned Bremont to military-approved watchmaking, and the Full Ceramic Deep Blue continues that direction: fewer, more technical watches, with the engineering argument carried by the case rather than the calibre.
