Vacheron is the oldest watch manufacturer still in existence since its inception in 1755.  250+ years of history allows them to make watches that eclipse most others.  The Tour de l’Ile has tourbillon, two faces, and more complications and parts than even the Breguet Marie Antoinette (hopefully without the beheading) making it the most complicated serial wrist watch ever made. It’s worth JUST shy of a Veyron… unless you buy used.