help identifying my 18K Omega Constellation Ref.168.010

Watch looks to be original but well worn. The dial has some flaking of the original lacquer, probably due to some water intrusion.

You did not show a side view of the crown so I cannot say anything about that. Movement is likely to be the Cal. 564, with a push-pull quick set date. I would not attempt to set the date this way unless I was standing near a watchmaker, because if something is wrong you will make it worse. Don’t ask me how I know this.

Value is going to be based on the gold in the case, plus a premium for the dial and movement. There should be plenty of similar listings in the completed items on eBay.

gatorcpa

Welcome @Gioele

Congratulations on your inheritance and commiserations if you lost someone close to you.

As above, the case has had a life and has been quite heavily polished in its time.

From the blurry pic, the dial looks correct.
It does however have some spotting but this is very common on these references.

This means it is not a top notch collector’s piece but none of this should affect you enjoying wearing the watch.

The crown is a replacement crown as it should have a recessed crown.

The movement will be a cal 564 as it has the quickset date complication and the watch will date to around 1967. (After 1966 and before, say, ‘68/‘69)
There is no way to pin the production date down exactly unless you have an extract of the archives (which aren’t currently available).
However the watch could have been sold years later.

Value - as above - gold value plus a little for the dial and movement.

Btw
I think the case may be 14k not 18k.
The hallmark looks like the squirrel not Helvetias head.

I'm guessing the OP didn't like what they heard about the watch?