Ulysse Nardin Blast Tourbillon RainbowTo soften the look of the Blast Tourbillon, a total of 50 rubies and baguette sapphires adorn the bezel and hour markers, making this timepiece exceptional and powerful on any wrist. Caliber UN 172 Self winding Classic or unconventional, simple or complex, for men or women, our collection of calibers is one of the most extensive and diverse in the industry. It is based on a culture of innovation, independence and quality that has made Ulysse Nardin