Roger Dubuis: Excalibur Spider Carbon

World Premiere: Clockwork Made Of Carbon

The Excalibur Spider Carbon from Roger Dubuis is a world champion: its RD509SQ is the very first in which the board, bridges and the upper Tourbillon cage are completely made of carbon. The 45-millimeter model in deep black and fiery red impresses with its skeletal case of multi-layered carbon. The bottom of the case, the case and the crown are made of titanium, have a DLC coating and are combined with carbon, vulcanized rubber or red lacquer.

The movement with flying Tourbillon oscillates with 21,600 semi-oscillations in the hour and has a reserve of 70 hours. According to chronologicalwatches, such a construction is made possible by the particularly hard T700 carbon watches, which provides for less vibration and greater gait accuracy. Thin-layer application through a complex impregnation process results in many useful properties, such as a uniform structure with a porosity of 8 percent less than most other types of carbon, but also a significant weight reduction of 30 percent that facilitates the rotation of the upper Tourbillon cage. The layers, offset by ten degrees, on the PCB and the bridges require a complicated production process.

The layers on the caliber reflect the motifs of the housing. The honeycomb-like dial is reminiscent of the radiator grille of a car and thus offers the perfect high-tech backdrop for the caliber RD509SQ. The bracelet fascinates with its rubber base with red textile-like cover made of Tech rubber. It is closed with a DLC-coated titanium folding clasp. The Excalibur Spider Carbon is available in a limited edition of 28 copies for 214,000 Euros each.