Looking for help identifying and maybe value

My dear partner has asked me to sell some 'old' watches and jewellery belonging to her late mother. All pretty straightforward and valueless stuff really apart from one watch. She tells me she thinks her father gave it to mother as anniversary present (he died some 30+ years ago). That's all I know. It seems to work so attach a couple of pictures. I have no way of removing back sorry. The face is pearlised white not yellow. I believe it to be 9kt white gold, there is a circle with triangle with horns on clasp along with gold stamp. Also has OWG and FON stamped on it. With this information and my useless photos can anybody help please. BTW only found site today and spent far too much time just reading stuff, its great what you guys know, thanks and respect

Not an expert on ladies watches ( or Omega for that matter) but I will give you my thoughts as the thread is a little quiet. These ladies Omegas rarely fetch big money in my experience as the style is a little dated for most ladies tastes these days. If it is solid gold though it will definitely have value. I would go to ebay, type in Ladies Gold Omega Geneve and then set the " sold items" filter. That will give you an idea of prices that similar watches have sold for. Best of luck.

For valuation, Fellows auction house have a watch sale coming up in the middle of July and will do estimates by email. I’ve bought from them before and their sale estimates seem reasonably accurate from the auctions I’ve watched.

Thanks for the thoughts. What does FON and OWG stand for on clasp?