Ulysse Nardin Diver X Skeleton

The Ulysse Nardin Diver X Skeleton, reference 3723-170LE-3A-BLUE/3B, is a dive watch with a 44 mm titanium case and a rubber and titanium strap. Measuring 15.7 mm thick, the case carries a water-resistance rating of 200 metres. Self-winding calibre UN-372 has a power reserve of 72 hours, a silicon escapement and 23 jewels, with a frequency of 21,600 vibrations per hour. The blue openworked dial displays hours and minutes beneath a sapphire crystal. The watch is a limited edition of 175 pieces. The unidirectional rotating bezel surrounds the time display.