Having pioneered and perfected the art of crafting contemporary skeleton calibres, Manufacture Roger Dubuis now steps things up yet another notch for 2015 by introducing its aptly named Excalibur Spider concept, and its first Automatic Skeleton caliber with micro-rotor, the RD820SQ. Lear more about our SIHH 2015 debuts: www.rogerdubuis.com/en/sihh