1960s Omega Seamaster Calendar, need help

Hello,

I am new to this forum. I recently found my grandfather's watch. As far as I can tell, it seems to be an early 1960s Omega Seamaster automatic calendar watch. Other than that, I know nothing. I am completely new to this. I think the watch is beautiful and I'd like to get it worked on by someone good. The top glass is scratched up, which is too bad. I am not sure if that can be addressed. It seems to run but I don't know how accurately. I am not sure it's ever been serviced. I just started wearing it, so I will know more soon.

If anyone knows what this is exactly or has any advice on who to go to to work on it, I would be grateful. I am in Brooklyn, NY but also go to Paris, France often. I could mail it to someone good as well. Pics are attached.

Thanks a lot!

Thank you @ErichKeane! PM sent

Hello fellow New Yorker, I usually take my watches to Tony’s watch repair in Chinatown, he has pretty reasonable rates and works on a lot of vintage watches

Thank you!