The Swiss watch is simple, you put it on your hand and forget about it. A Korean watch needs time and effort to set up, update, and connect to another smart and much more expensive device that also requires setup and updates. Therefore, a Korean watch wastes a lot of your time. On the one hand, the people with a lot of time seem smarter. On the other hand, if they dedicate their time to their watches, they don't seem so smart. On the one hand, the people with mechanical Swiss watches seem to earn more than enough and are therefore smarter. On the other hand, if they dedicate their money to Swiss watches and similar knick-knacks, they don't seem so smart.
I think the smartest watch is the watch that does not say what time it is, but what to do with your time. The same goes for people: the smartest are not those who know what time it is, but those who: a) know what they spend their time on, and b) are happy about it. They definitely don't need watches for that.