Measuring 42.7 x 50 mm, the tonneau-shaped ceramic case of the RM 47 frames a fully skeletonized dial that conceals nothing. Sapphire crystal on both the front and the transparent case back opens up the view to each bridge, gear, and spring of the manually wound RM 47 caliber, while a screw-locked crown secures the movement inside.
The sole complication is the tourbillon itself — given full visual prominence by the openworked architecture. A rubber strap with a folding clasp keeps the watch settled on the wrist, and the approximately 70-hour power reserve means the watch does not need to be wound every day. Water resistance is rated to 30 metres.
The RM 47 Tourbillon Skeleton is directed at the collector who wants the mechanism — not just the complication — on constant display, with ceramic construction keeping the overall package notably light for a watch of this presence.