I looked at Phongs complete builds when researching build plans on my 6538. Nice, but I knew a few of the parts I would want genuine. For that kind of money total satisfaction should be the goal. So while a nice piece, my thought was that I would have to replace the crystal, crown, insert and bracelet with gen so decided to do it from scratch. Not to mention there is a much better dial and hands option. As CC stated, plan on 5K for a starting point and if you add a genuine bracelet and insert that increases quickly...Good luck