Patek Philippe

It's been a long time since I've considered a dressy Patek. I understand that the 3919 has the in-house 215 movement while the 3520 is based on a Piguet ebauche. But I'm still having trouble deciding. Can anyone please shed some light to the finer differe... 

seen this: Oliver

I think the 3919 seems to be better if for nothing but the size and more robust 215 movement.

PP used them both for a good reason in their Calatrava and Gondo lines. The cal. 177 is based on the Piguet caliber 21 and was used not only from Patek. The cal. 215 is a movement developed by PP in their own tradition of impeccable craft. ... For some it... 

Both represent excellent examples of the refined gentleman's dress watch. I think this is what Patek does best and both models are iconic in their own right. Hard to declare one better than the other but they are clearly different. The 3919 is slightly la... 

I like the shape of its hands and the presence of the second hand. The size of the 215 is not an issue here due to the case diameter. In other words, I don't have any hesitation... Fx

Ref 3919 and absolutely LOVE it ,,,,when this Masterpiece is on your wrist,, (mine is on the smaller size),,even though it is approx 33mm in dia ,,it is very proportionate to the wrist, and has such a nostalgic flair to it that ,,,you will not be sorry ,,... 

The 3520D has a screw back while the 3919 has a snap back. One other difference is the size of the crowns, I found the crown on the 3520D quite small and not as easy to wind whereas the crown on the 3919 is somewhat larger but large enough to make the win... 

what good is it if you can't view the beautiful movement?