The graham mercedes gp a trackmaster watch was launched in 2010 for the silverstone formula one grand prix this timepiece comes with g1734 automatic bi compax chronograph movement it performs 28 800 vibrations per hour mercedes gp a is equipped with incabloc shock absorber power reserve of 48 hours and 27 jewels a date window is positioned at the 7 oclock mark the watch comes with both seconds and 30 minutes counter chronograph hands mark hours minutes and seconds domed anti ref