it's just natural to mention in the same context of the BP 1735 also the IWC's Destriero, however, yes however, you probably know already what I want to say Nicolas...yes, the movement....hmmmm....having such a complicated watch driven by a basis of a Valjoux 7750 (or alike)...I simply can't get it....anyway....I do think between the two, the BP surpassed the IWC by far....