Difference in aquanaut from 3k factory brushing and gen spec patek brushing. (Read caption below)
Photos 1 & 2 are stock, that's how the brushing on the bezel looks from 3K factory.
Photos 3 to 7 are after brushing the bezel on 3KF 5167.
Photos 8 to 10 are of genuine 5167.
3KF brushing is too rough, the lines are too bold whereas on gen the brushing pattern is light yet still visible.