i assume your orange PO is 8500?
anyway, you can always change it, then when the time comes to service just change it back.
warranty shouldnt be affected as it doesnt involve opening the case.
but for a local watchmaker to do it, he better have the correct tools.
ofrei sells the same tool which omega also uses, and which makes it easier to remove the bezel.
only drawback is the tool costs USD800+.