Congrats, that's a stunner!
Case looks sharp, nice patina on the lume.
Like mentioned above, I wouldn't worry too much about an original crystal. If your OCD really needs one, a new one surely will do. Personally, I wouldn't pay top dollar for a NOS one.
The crown is definitely correct, pushers is always hard to tell without a side by side.
If you don't own the MWO book, my I suggest their "app / ibook"?
It's a pocket reference guide to Speedmasters, with a step by step identification program, and a list of components per reference.
More info here:
http://www.moonwatchonly.com/omega-...-electronic-speedmaster-identification-guide/
Enjoy your Speedmaster!
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