Archer
··Omega Qualified WatchmakerSure, but wouldn’t Omega (or Rolex or any other manufacturer) be able to “recycle” the white gold from old hands or indices?
Policies vary widely in this regard.
Omega returns the parts they remove from the watch (this is one reason why PM watches cost more for servicing).
Rolex does everything on an exchange basis, so you are never aware of what they actually replace on their watches (this is a deliberate thing - if you don't get back a big bag of worn and damaged parts, it gives the impression that their watches are somehow more robust - it's marketing).