I guess the watch you have there has the 1509 movement. It`s a 15 mm diameter movement used for woman's watches. To make sure of it, you should open back to look at the movement.Hello!
My grandparents lived from 1949-1960 in Russia and they came back with this watch.
It has written on it Zaria, 17 Jewels, Made in USSR
If anyone could tell me more I would really appreciate it.