They get hidden in render because of this shop material attribute that I have to delete for each and every piece of the watch.

Is there an automated way to delete this attribute instead of entering the node for every piece inside the wristwatch?

I converted the embedded materials by using ODtools.
Here's the project file.
https://www.dropbox.com/scl/fi/e8803p5cmz2pw3vsct820/wristwatch-material-challenge.zip?rlkey=kys5oyueemjzkv9k7d86vrb9j&st=4wpwuhkt&dl=0 [www.dropbox.com]

