Help with identification Omega Bullseye

Hi guys,
I just recently bought this watch cause it really caught my eye. I have been trying to find the model name without any success, the only thing I find is that it is a bullseye but thats just general for the dial I guess. Do you guys know about the model and about its history? If you as well have any thoughts about the condition I really would appreciate if you could share it with me!

Many thanks to the forum and for any help. I wish you a merry christmas! // D

Not the reference I'm familiar with but:

Is there a reference number on the inner side of the caseback? If yes just do an internet search for that number

If not just do an internet search for

Omega + 283 + bullseye

Good luck!