Looks nice and legitimate. Valjoux 7750 is a great movement (among my favorites). They trade around $1,200-$1,400 USD in need of service. Were you looking for specific advice? Not that I'm qualified to give it as I never had one...
It is known as the speedmaster reduced, smaller than the original moon watch, and generally no as favoured as the original. I've never owned one, but they do have a fan base. Some people quite like them. From a 'purist' point of view though, it's not a Speedmaster pro. Edit: actually, doesn't look like reduced, but speedy automatic. Same comments as above though otherwise.
That's not a reduced - this is a Speedy automatic ref. 35128000. Unlike the reduced, which uses a chrono module on top of a 2892, this is a fully integrated chronograph based on the ETA 7750 that Omega has slightly modified and call the Cal. 1152. I service a lot of these and they are very well made IMO. Cheers, Al