Lighted, motorized vintage "Hamilton Weatherproof Watch".

I have a lighted, motorized Hamilton Weatherproof Watch sign..I think was used in a jewelry store as a display. When plugged in, it appears that rain is falling on the figures..The clothes appear to be around 1959 or 60. It is about 22" high, and 14" wide, and has a handle-up umbrella as part of the ad. My son gave this to me for a preasant a few years ago. He found it while cleaniong out an attic in his place of employment. I can find nothing about it online. If anybody has any clues for me as to its age and/or value, I would be grateful!! I wish I had more fotos of it. It has a niche on the wall of our "cave'.