Franc Vila FVA Cuatro Tourbillon Dial-Side Column Wheel Monopusher Chronograph DieHard Extreme Steel Men's Watch. This watch has a Die Hard extreme steel esprit unique case. The strap is brown leather. Its exclusive hand-made and hand-decorated FRANC VILA manufactured movement is the first ever to have a column wheel monopusher chronograph mechanism built in the dial side directly coupled to the tourbillon cage. With 5 days of power reserve, the FV No. Cuatro movement is built with 262 components and 33 rubies, and incorporates the "Inertial Moment Control" technology, and the "Wheels Differential System".