Please help me in identifying this moonwatch professional and broad arrow

Omegafanman

I think people have covered everything.... you can shortcut some info:-
https://www.fratellowatches.com/speedy-tuesday-omega-speedmaster-57/
https://www.fratellowatches.com/omega-1957-trilogy-railmaster-seamaster-300-speedmaster/
https://est1897.co.uk/omega-serial-numbers-how-old-is-your-omega-watchhttps://www.watchfinder.co.uk/serial-numbers.
Nice set of watches :0)