

In fact, the last chronograph model produced prior to the 5070 was the iconic Reference 1463, production of which ceased in the late 1960s. The calibre 27 70 157 is widely recognized as one of the best chronograph movements and is based on a Nouvelle Lemania ébauche specially developed for Patek Philippe. The movement was only used in the 5070 and 5071 references, which is the white gold diamond-set version of the 5070.
In addition, the present example is still in its original factory seal and has never been used before.