Advice On A Potential Purchase

I am new to the forum and to collecting vintage Omegas. I have been reading and looking around. I found a local reputable watchmaker and dealer of used vintage watches. He has this Omega Bumper Automatic for sale. It was serviced by him. It appears to be mostly original including the dial but the crystal has been replaced as has the strap. I will copy some of the pictures here but want some advice on whether it is a good example and what it is worth.



Thanks, Pete