That's everything I wanted to know. Thanks!
My friend who served in Korea said it says China, but numbers looked strange to him. Being calligraphy things explains that. If it is 31 day, it is also nice. I was just really puzzled, since this is the first time Google plainly failed finding any...
just bought this mechanical clock. It runs. Planning. for entertainment, to clean it up and restore box. Looks Chinese, but I am having hard time finding any information about it. Any ideas?