I’m not at all sure about the watch. I bought it at an estate sale. The front of the watch says national watch co, the smaller dial seems to have iridescent hands. The front and back flip open and on the inside of the face side opening is the numbers 71 46. The back side flips open and there is a small hole to wind it, I am unable to do, and the other side says Dueber Silverine 967146.

About 2.25 inches across. I included a measurement photo.