Patek has been improving its finish since a decade, I won't be surprised to hear that your brand new movement is better finished (under loupe) than the former 324. I compared 324 to its predecessor 315, the quality (esp. the edge polishing, i.e. bevelling) on 324 is better. Also the more recent 240s are better finished than earlier 240s. A very good trend to see a brand like Patek improve silently without shouting to the public.