I was given my grandmother's vintage Bulova 14k rose gold ruby and diamond watch. (14k marking on the back of the watch.) The markings on the band read Gemex 1/20-12k gold filled.
Bulova 14K Rose Gold Wrist Watch 1940s Time Piece Ladies Watch Vintage - Etsy UK
Is this gold filled or 14K and what is the time period. | Collectors Weekly