It took hundreds of millions of years of cooling in the vacuum of space to freeze the bands of kamacite and taenite into perfect geometric patterns. On Earth, Muonionalusta siderite — discovered in 1906 north of the Swedish Arctic Circle after passing through the atmosphere roughly a million years ago — is renowned for this crystalline Widmanstätten structure. An interlacing that human metallurgy cannot reproduce.
In the Bell & Ross BR-X5 Météorite, this iron rock does not settle for a merely decorative role. The dial is machined directly from the raw mineral mass, with no underlying brass plate to provide rigidity. The dial feet pass through the material itself. A thin layer of grey metallic PVD stabilises the iron-nickel alloy against oxidation without smoothing over its micro-roughness. The result exposes an uneven surface, streaked with diagonal lines where light catches shifting reflections, contrasting with the rhodium-plated “tonneau” indexes and skeletonised hands charged with blue-emitting Super-LumiNova BGW9.
This geology fits into a case that is its formal antithesis: the 41 mm modular case in satin-brushed polished steel typical of the BR-X5 line. Designed with a sandwich architecture held by four through-screws, the middle case is hollowed out on its sides to lighten the mass on the wrist while protecting the internal components.
At the heart of this architected cage operates calibre BR-CAL.323. Designed exclusively for the Maison in partnership with the Kenissi manufacture, this automatic movement beats at a modern frequency, displays a 70-hour power reserve — represented by a circular indicator at 9 o’clock that balances the large date window open at 3 o’clock — and claims a chronometer certification issued by the COSC. By confronting a frozen slice of cosmic time with a high-precision engine paced to the fraction of a second, the piece is a reminder that a measuring instrument never captures time: it merely marks its passing.
Detail
- Case and architecture: satin-brushed polished steel, 41 mm (12.80 mm thick), hollowed multilayer sandwich structure, 100 m water resistance, sapphire caseback.
- Dial: monolithic Muonionalusta iron meteorite disc with natural Widmanstätten patterns, protective PVD treatment, luminescent rhodium-plated indexes and hands.
- Movement: in-house automatic calibre BR-CAL.323, COSC chronometer-certified, 70-hour power reserve.
- Distribution: limited edition of 250 pieces, available on a satin-brushed polished steel bracelet or black rubber strap.
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