Absolutely gorgeous watch... one of my favourite Pateks!
Noticed that in your photos the watch has a 324 caliber. I thought that this was only available in the the limited edition 5350, otherwise according to Patek's website the 5146 comes with caliber 315.
Has Patek upgraded the annual calender 5146 to have caliber 324, just like 5135 and 5396?
Cheers, Kevork