To celebrate the 10th anniversary of 's relationship with Nadal, the RM 027 sees its fifth generation with the new and wondrously expensive RM 27-04. The case is made of something called TitaCarb and, like past examples, it's been designed to be worn by Nadal while he's playing tennis. Measuring 38.4 x 47.25mm, the 27-04 is a skeletonized tonneau-shaped watch while being as light as possible.