Kisai Sensai watch: Don't expect to be able to read it.
Made from aluminum, and using multicolored LED’s to indicate the time and date, the Kisai definitely has a unique appearance. You might be reluctant to tell people that it’s a watch however, because they could ask you to tell them what time it is. Perhaps you could tell them that it’s a Geiger counter, or perhaps a device used to measure gamma radiation for space. They’d probably believe you.