Ulysse Nardin Diver X Skeleton Azure

The Ulysse Nardin Diver X Skeleton Azure, reference 3723-170-2B/3A, has a titanium and carbon composite case measuring 44 mm across. The case stands 15.7 mm thick. A unidirectional rotating bezel surrounds the sapphire crystal, which opens onto a fully skeletonized dial in black. The self-winding calibre UN-372 drives the watch, running with a silicon escapement and a power reserve of 72 hours. Hours, minutes and seconds are the only functions, left legible through the openworked construction. A rubber and ceramic strap fits the case. Ulysse Nardin rates the case to 200 metres of water resistance.