Need to replace the crown on my Omega Seamaster PO

[ceb5O8]

New to this forum. I need to replace the crown on my Omega Seamaster Planet Ocean GMT (43.5mm). Crown no longer screws down to watch case. Any advice or guidance about sourcing parts would be appreciated.
Many thanks in advance for your help.

 

[Teamjlf]

Long shot mate but try VERY GENTLY crimping the crown tube a limitless bit and then try screwing the crown in again. By changing the shape of the crown tube very very very carefully and slightly you may get the crown thread to “bite” again and at least get some more useful life out of it.

 

[KushBandit]

Try ebay or Ofrei, and get a gen Omega tube and crown.