With the help of their new parent company, La Joux Perret, watchmaker Arnold & Son released a slew of awesome new timepieces equipped with manufacture movements this year at Baselworld. We already covered the Time Pyramid HERE, and will cover another one of their watches soon, but today we will discuss the UTTE. The Ultra-Thin Tourbillon Escapement has the world’s smallest tourbillon movement. Well, to be precise, it is tied with the Breguet Classique Grandes Complications 5377BR Ultra Thin (which we will cover later this week) for the world’s smallest tourbillon movement. At 2.97 mm it is the same thickness as the Breguet, however, the Breguet timepiece is housed in a case that is only 7 mm thick compared to the 8.34 mm thickness of the Arnold & Son.