Patek Philippe

.. a reference number for the next pp model for 175th anniversary, what would that number be ? What reference number do you like the best so far ?? Coolest number, not necessary you have to like the watch. I like the number 3939 n 5959. Accidentally tw... 

5175?

... "8"175 with 8 being the auspicious number meaning fortune !!

Keeping in line with the current 5000 series for men's watch and 7000 series for the lady's watch, how about a 5175 and a 7175?

The problem with Ref. 5959 is that it is not water resistant, where Ref. 5950A is water resistant, and it also compliments Ref. 5951P. Ref. 5959P is the only modern, and current Split Second Chronograph that is not water Resistant, unlike 5004, 5204, 5950...