1970's Omega Constellation - Is it fake?

Hi all, i know next to nothing about watches at the moment, but have decided i want to upgrade my old seiko with an older seamaster/constellation. I've been browsing ebay/gumtree and all the usual places and saw this listed today.





the price seems pretty cheap for a a constellation and it looks in good condition, but obviously not knowing a lot about watches i have no idea it it's fake or not and my gut instinct always tells me if something looks to go to be true it probably is.

in my limited browsing i've never seen a constellation that has the "constellation" written above the omega logo on the dial, do watches with that layout exist? the watch is also listed on ebay alongside others but the seller has 0 feedback.

Thanks a lot for your help

Real and original.

awesome, a good deal at $750 australian (563 USD)?

Legit. This layout, from the 1970s, is not as highly sought after by collectors, so the prices are correspondingly lower.