A sharp expression of Ulysse Nardin's contemporary watchmaking, the Skeleton X pares the brand's design language back to an openworked, architectural core. This watch sets that approach in a 42mm titanium case with a skeleton dial, giving the geometry of the movement equal billing with the case itself. Its manual movement suits the model's stripped-down character and keeps the mechanical focus front and center. At 10.4mm thick, it wears with a notably lean profile for a skeletonized design.