Need information on this Omega watch

[Falcon]

Hi everyone,
Looking for information on this watch, I came across your website.
We inherited this watch and wanted to get some information. It has been in a safety deposit box for many years and seems in good shape. It actually works.
I'm considering selling it but unsure how much it may be worth. So, I'd like some information and a ballpark price.
So far, I know the following:
It is from the 1970s and seems to be a collaboration between Omega and Andrew Grima.
There is no other watch like it, making it difficult to get information about it.
Hopefully, you can help.
Thank you all.
Julio

 

[Dal Cais]

Omega De Ville, Emerald ?

 

[X350 XJR]

Not a desirable model, really only worth about melt value of the gold.

Two ways to find out value:

Take it to a gold buyer and see what they will give you for it.

Put it on eBay for $1.00 and let the market tell you.

 

[Falcon]

Thanks so much for the information, X350. is about 65 Grams in 18k gold.
That is what I wanted to know.