For sale is one Omega Constellation NOS crown. It will fit on case ref 2852 powered by 501/505 coming with a case tube.
It has never been used before but it is a NOS crown, I cannot give any warranty about waterproofing on it.
It is in pink gold tone, so you should not buy it for your yellow gold case because colors don't match.
I want $100 usd for it and you will pay for shipping cost. It will be handled by Canada post.
Please look at the photo carefully and ask questions if you are in doubt before buying because I don't accept return

The last photo is taken next to a 168.005 crown in yellow gold so that you can compare the size and color
Thank you for looking.
Hoi.