Offering the best performance ever heard from a striking watch, the Ulysse Nardin x Devialet Classico Hourstriker Phantom is a unique timepiece. Working with engineers from the French audio firm, Ulysse Nardin created a mechanism that delivers 85 dB of sound up to 100mm away. It, along with the self-winding Caliber UN-610 movement, sits in a 43mm Polished titanium case. To further the motif, the satin-brushed anthracite dial is inspired by Chladni's figures; visual representations of the vibration patterns made by sound that are also found on Devialet's speakers. The timepiece rings on the hour and half-hour, rests on a black alligator strap, and is limited to just 85 examples.