As you are saying: a level of perfection and aesthetics that you can only be associated with Patek.
If you hold the watch in your hand you instantly notice the grace coming from it.
The manual 5119, which is just fine at 36 mm, still looks a bit "sporty" compared to the 5120, nearly big.
The lugs on the case are simply perfectly proportioned.
The Ellipse has also changed a little, has become more rectangular than elliptical, a little bigger, but still slim and a watch instead of a body furniture.
Other traditional Pateks have become more APs or Rolexes, brands that still can not produce an aesthetic that could match a Patek.
Exceptions may be the grand complications, but also there: in the past they were smaller.
Best
Moritz