Why are Patek Philippe central rotors no longer as beautiful as this one (calibre 12-600 AT)? If you're interested in this topic, you might want to check AndCavanaugh's thread dedicated to Four Generations of Patek's Central Rotor Automatic Movement . Hav...
It was the first automatic Patek movement AFAIK, and I imagine this had a lot to do with the effort put into decorating the rotor (the rest of the movement finishing is great as well). The 2526 was also a very expensive watch when it was released, priced ...
To get a PP hand finished caliber with interior angles, you have to turn to the most expensive models. Even a €140k watch like the in-line pc 5236p has a mostly machine finished caliber. That really takes me away from PP.