This pared down model perfectly illustrates Bell & Ross’ idea of contemporary Haute Horlogerie, with the movement showcased as a masterpiece within an ultra-modern setting. The concept behind the BR X2 is that the movement is worn directly on the wrist. The mechanism is brought to the forefront, while the case disappears.
Bell & Ross designed and developed an exceptional square movement, the manufacture calibre BR-CAL.381, which adopts the brand’s iconic signature shape. It is set between two sapphire crystal plates, linked by a narrow band of steel machined as a single piece, to ensure unrestricted visibility.
This makes the case virtually invisible, and the dial does the same to showcase the skeleton movement, allowing all elements of the mechanism to be admired. For a skeleton movement, the challenge is to remove as much material as possible whilst ensuring the model’s mechanical constraints are respected. From the micro-components to the finished watch, every detail is important.
This two-hand watch displays the hours and minutes with optimal precision thanks to a flying tourbillon that compensates for the gravitational pull of the earth. Simplicity, yes; but also elegance and restraint, thanks to its understated dimensions (42.5 mm square) and delicacy, made possible by the extra-thin movement — just 4.05 mm — with automatic winding provided by a microrotor.
This miniaturisation process allowed the thickness of the movement to be reduced, yet with an equivalent power reserve. Inspired by modern architecture, this model will be available in a limited edition of 50 pieces.
Model: Bell and Ross BR-X2 Skeleton Tourbillon Micro-Rotor
The micro-rotor is machined in a very dense alloy, Reconit 18. This alloy contains 95% tungsten. 18.5 density, compared to steel (8.0), pure gold (19.3), 18-ct gold (15.5-16.5 according to colour), platinum (20.7)
Hours and minutes
Flying tourbillon at 6 o’clock
42.5 mm in diameter
Crystal: sapphire with anti-reflective coating
Water-resistance: 50 metres
Metal applique Superluminova®-filled indices
Metal skeletonized Superluminova®-filled hour and minute hands
Folding buckle in satin-polished steel
Limited Edition to 50 pieces