I received this Hamilton watch from my grandmother way back in 1964. It belonged to my grandfather, but I don't know what year or model it is. I wore a different watch for over 40 years and recently sold it, so I dug the Hamilton out and wound it up and (surprise, surprise) it still works great! In fact, it is in perfect sync with the time.gov site for over 2 weeks now. Does anyone know the model and the year of the watch? Thanks!