omega , identification needed , please UPDATED

hi, i have a chance of purchasing an omega 18ct gold seamaster auto deville unishell case dia is around 33-34mm , but can not work out , what the case reference number is as I only have 1 photo. my question is whats the case ref, and what calibre movement it holds..... I hope somebody can help. many thanks regards p ...................................................................................................................................................yes, sorry. here,s another photo. I was hoping it was a 552 calibre. but not sure. as the back, looks a little unusual to me .. ps thanks again ,re all your help. regards ,,all

It sounds like it's just the case on offer, but still: that one picture with two correctly placed hallmarks that I didn't even notice, on a yellow metal case isn't even enough to convince me it's gold.

The two correctly placed hallmarks on a yellow metal case isn't enough? 😀

Could be a Ref.165020

yes it could be thanks but where ever I google, I can not find this same case...

hi, thanks to all re your replies. excellent news...........regards to all... and thank you