In what amounted link to a lineage that started with the Caliber 89 and trickled through Andersen, the next to achieve the secular QP was Franck Muller, who spent time in Andersen's link workshop. With the Aeternitas Mega 4 in 2007, he joined the annals of history, not just for the secular calendar but link for the fact that he bested Patek Philippe by creating a wristwatch with 36 complications and in a wristwatch format – the most complicated watch in the world at the time.