Ulysse Nardin Blast Tourbillon Dragon

The Ulysse Nardin Blast Tourbillon Dragon, reference 1725-400-2A/3A, has a 45 mm titanium and 18k gold case, a flying tourbillon and a velvet rubber strap. At 12.6 mm thick, the case has a water-resistance rating of 50 metres. Self-winding calibre UN-172 contains 25 jewels and runs at 18,000 vibrations per hour. The openworked dial displays hours and minutes beneath a sapphire crystal. A sculpted dragon passes beneath the hands and between the gear train and the X structure. The movement has a power reserve of 72 hours and a silicon escapement.