Grandfathers watch

I found this after my grandfather, it has value to me so I would not sell, would be nice to get them repaired one day, but they seem smaller not sure if they’re women watch? The wheely thing on the side is missing, it says “universal geneve” on the front and “swiss 20724 1092935” on the back. what are these please, what could be the price and would I be able to wear them one day? thank you!