1955mercury
Posted March 3, 2016 - 8:47pm
Hi Dnater. That's a nice heirloom from your grandmother. It's practically impossible to identify it without more information. Going by the case design it would not likely be a 1935 model. I think it would more likely be one from the 40's. It could be a Goddess of Time similar to this one.
When you can retrieve it the information on the case back and movement will help with making a positive ID of your watch.