Seamaster Deville 1972 original

Dear All
I am looking for some help and advice ?
My father bought this watch in 1972 as you can see from the guarantee card ,it is in pretty good condition as you can see from the pictures .
The problem it has been handed down to me from my father who is no longer with us .
I would actually like to get a reasonable price for the watch ,as it is of sentimental value ,I would like the money to get a memorial for my father at some point .
I have been in contact with a few watch buyers via the internet and some are not even interested .
I think it is a lovely watch and it has a gold or gold plated bracelet ,I am not sure to be honest .
Please can someone point me in the right direction of who may be interested in this kind of time piece ?
I am not even 100% sure of the model number as I do not want to take the back off the watch .
I dont know its value really ,so I would not want to put it on Ebay ,I suppose it is a little bit of supply and demand .
Photos attached for ref .

Much sharper photos will be needed, preferably of the movement as well. Judging from the card and the fuzzy dial image it looks like a Ref. 166.5020 - came across a 9ct solid gold cased one looking for something else a while ago, but no idea if that was the standard for that ref - just happened to have the page on it bookmarked.

It's certainly not worthless, but you'll need to have a proper watchmaker look at the movement before going too far on valuation - that's my advice.

If I can ask, are you in England yourself? There are some excellent folks for vintage Omega work around, depending on where.

Hi Kip
Thanks for that really appreciate your help ,yes I am in England in Manchester ,would you know anyone in the UK possibly who is good watchmaker ?