Rodolfo and Emmanuelle Bianchet have launched their Bianchet B1.618 openwork tourbillon. The watch is stated to be fitted with a proprietary caliber ( in collaboration with Olivier Mory) in a tonneau case of 43x50 mm and shock resistant to 6000G. The dimensions of the watch are stated to be as per the golden-ratio; and the 50ft WR watch carries a power reserve of 105 hours . The titanium version weighs 55 gms ( carbon composite weighs 33gms).
Interesting creation, but very eerily resembling a Richard Mille is that first thought that sprang to me. Priced at CHF 46500 before taxes, it looks a tad expensive as well.