The Caliber 115 wasn’t simply “skeletonized,” (a process where superfluous material is removed from the mainplate and bridges). Instead it was initially conceptualized as a skeleton movement, meaning no material has actually been subtracted – it was manufactured with open space in mind. The Caliber 115 is the focal point of the watch indeed, but Oris didn’t stuff this movement into an existing case. A titanium case comprised of grade 2 and grade 5 titanium components was designed to seamlessly wrap around the new movement. It doesn’t use a traditional movement retaining ring set up – instead, the case is constructed in multiple pieces, and tolerances are exacting enough to allow the 44mm case to be assembled tightly around the movement. There are no chamfers, bevels, or polishing on the movement, either. It’s mostly galvanized, lending a raw industrial feel to the watch.