Just found this and the price is already at 10k USD but is it correct?
Missing a bezel.
321 movement. The serial number places it to 1956.
But, what's going on with the dial and hands. Seems all wrong.

https://www.ebay.com/itm/133518259864Purchases made through these links may earn this site a commission from the eBay Partner Network

 

I think we're seeing the market value of a 2915-1 case.

 

Not this one again. I don't know who originally have made this photos but they are circulating on 3 me known auctions so far. So therefore I guess the auction is a fake.

E: The 2915 itself is, as far as I can see, good, but there are surely other more knowledgable members chiming in soon.

 

The case back -1 number is equally sized to other numbers of ref. Typically it is shorter in height. Something smells...

 

Its not legit. Been discussed several times

https://omegaforums.net/threads/speedmaster-2915-1-popped-up-on-ebay.117807/

 

Really? With a serial number 2 years before the watch was released?