I recently acquired this watch. It is from the historic Hamilton vault. It's an interesting piece that is described below. This may be the watch Hamilton first used to experiment on the "Electric Watch?" I honestly don't know. It was kept in the Hamilton Archives and so at least I know it was important to them. The dial is not a standard Palisades dial, and the two stems are what threw me until I did some research and found this from some Hamilton Notes. "The Pillar plate was altered by drilling outbanking screw holes forming an electric escapement.