Ulysse Nardin Blast Tourbillon Free Wheel

Ulysse Nardin's Blast Tourbillon Free Wheel, reference 1760-176, is a 44 mm case in white gold. The case measures 13.46 mm thick and the dial sits under a sapphire crystal. Inside is the manual-winding calibre UN-176, with 170 hours of power reserve and a flying tourbillon built around the Ulysse Anchor Constant Escapement. The dial displays the tourbillon openly along with a power reserve indicator, leaving the movement largely exposed to view. An alligator leather strap closes the piece. Water resistance is modest for a watch of this kind. Ulysse Nardin rates the case to only 30 metres, enough for everyday wear but not for diving.