Now be nice....he is new and might take umbridge.
But to address the new boys concerns:
Bezels on 2915's are unlikely to be original in every one I have personally seen, ie handled. - watches for sale rarely have the right bezel in the photos I have seen. So what I am saying is the bezel is not an issue - apart from a pricing issue.
Some of the -3's had silver, and some had black BASE1000.
A long while ago, Omega were issuing extracts based on what the owners told them the movement was in. Now you cannot get an extract for a 2915. Until someone shows me one dated last three months I will not entertain a discussion about 2915 extracts, other that to suggest they are useless.