Help me identify this watch!

It is an Omega Sapphette, and would be karat gold. All Sapphettes were 14 or 18 karat gold. My guess is early to mid 1960s. The glass on the watch is not “glass”. It is synthetic sapphire, and the perimeter is faceted in the same manner that a gemstone would be faceted. The Sapphette was produced in two sizes. The subject watch is the smaller of the two. The movement might be a calibre 650, manual winder. To tell you more, we would require more pictures, and better. Pictures including stampings inside the buckle of the bracelet, pictures inside the case back (get help f you need it), a picture of the mechanism. The bracelet is made on a woven mesh (likely gold), and the mesh is quite worn, causing the links to “grin”. Probably not a good candidate for a lot of wear. If you need help getting better clear, well lit, better defined pictures, suggest you get help.

Almost everything is worth more to the owner than it is to anyone else. An item may have intrinsic worth, and sentimental worth. The watch was your grandmother’s, so only you know the sentimental value, to you. As was stated, watches for women exist in a buyer’s market. Anyone who might be interested in it is going to look at the stretched bracelet, and offer you scrap gold value. That value would depend on it being all solid karat gold, and whether it is 14-karat or 18-karat. Check the completed archives on eBay to see what karat gold (no gemstones) ladie’s watches bring. Don’t be misled by the prices people ask for such items. You want to know what they sell for! You might be in for a shock! I’d suggest you keep it and use it, then when the bracelet finally breaks, hope you don’t lose it. It was a premium watch in its day.