The 5231 expectedly looks neater in terms of enamel, an obvious testament to the technical progress that took place over 13 years (2006 vs 2019 when they were first introduced). The name on the bezel has frankly never bothered me, in fact I like it that it is peculiar to a specific reference. All in all, probably a tie for me since I'm not much into J gold...but above all, we are speaking of remarkable and exclusive Pateks across the board here -- hence congrats on owning either one (or both! ;-)