at the Geneva anuction! So many rare perpetuals to be looked at. There are a particularly large number of 3450 style watches (Day and Month apertures and a moonphase/date at 6 o'clock). This type of perpetual is my facvourite along with the 5050/5059 with the retrograde date too.
If you are into perpeutals there's definitely alot of eye candy to look at and a lot of descripton about the pieces and its PP history (dates produced, its various different sibling styles etc)
WOW!