Ulysse Nardin Blast Tourbillon Rainbow

Ulysse Nardin's Blast Tourbillon Rainbow, reference 1723-400B1LE-2B-RAIN/1A, is a 45 mm titanium watch with a black DLC finish. The case measures 12.6 mm thick. The black dial sits under a sapphire crystal. This watch is set with diamonds. Inside is the self-winding calibre UN-172, a flying tourbillon movement with a silicon escapement. Power reserve runs to 72 hours. Limited to 50 pieces, the watch is fitted with a "gummy-effect" alligator leather strap. Ulysse Nardin rates the case to 50 metres of water resistance, enough for everyday wear rather than diving.