At the time of its launch in 2010, the “Historique Ultra-fine 1955” was the world’s thinnest mechanical hand-wound watch - measuring just 4.10 mm thick. It is equipped with the mechanical hand-wound 1003 movement. The movement is one the thinnest in the world at just 1.64 mm thick, rebuilt - for its 55th anniversary in 2010 - in 18-carat gold, and bearing the Hallmark of Geneva. The present reference 33155/000P-B169 was introduced in 2016 and features a platinum case.
