The first path is to respect hand-finished movements, cases etc. The second path is related to technical advancement.
I am almost sure that nowadays Rolex is the most robust and technically advanced watch. 3255 looks like a work of technical art. If I had to choose one watch it would definitely be a Rolex (or Lange, they are pretty reliable too).
At the same time almost all if not all Rolex watches are entirely produced by machines. The movements are not hand finished and covered by solid back. And the horological value of such watches is quite small. I don’t even mention Purists’ approach of ignoring silicon components.
Of course there are auctions that show us how valuable Rolex watches are but it is another story.
Long story short - in my opinion if you have serious money to spend on a watch - it should be at least hand finished.