I'm trying to ID a watch that was recently found in a safe deposit box after the passing of my Grandmother. I've attached some images below. It's a key wind watch, and the only markings I can find on the watch are the numbers "699" they seem to be present on the inside of the casing, as well as the casing to the back of the mechanism. There is an image on the watch back of a circle with a upper torso and a line down the middle (Sorry I don't know of a better way to describe it). It also says on the back "echappement a ancre" which I believe from my search is referring to the mechanism, and "rubis" on the bottom which I believe i just an indication of the watch being jeweled.
This is a new thing to me, so sorry if my descriptions, etc are lacking. And thanks in advance for any assistance you can provide me.