Over the years, Bulgari has become incredibly skilled at creating ultra-thin timepieces and now the company is breaking records once again with its latest Octo Finissimo. The new model features an incredibly complicated in-house movement with a monopusher chronograph and tourbillon that is just 3.5mm thick. It also features a 52-hour power reserve and is housed inside a 42mm grade 5 titanium case that wraps around a skeletonized grey matte dial that gives you a stunning view of the watch's movement. 

€150,000 (approx. $177,220), bulgari.com