Ulysse Nardin Blast Free Wheel Marquetry

The Ulysse Nardin Blast Free Wheel Marquetry, reference 1760-401-3A/1A, has a 45 mm white gold case, a flying tourbillon and an alligator leather strap. At 12.4 mm thick, the case has a water-resistance rating of 30 metres. Manual-winding calibre UN-176 operates at 18,000 vibrations per hour with a power reserve of 170 hours, a silicon escapement and 23 jewels. The openworked silicon marquetry dial has a power reserve indicator beneath a sapphire crystal. The wheels and barrel appear above the silicon mosaic without visible attachments. The glass-box construction gives a view of the mechanism through the sides.