I’ll answer this one with an anecdote. A former boss of mine once said that whenever a young man came in for an interview wearing a large, ostentatious watch, he would ask him the time. If the man went for his cell phone, it showed that the watch was just there for show and/or it wasn’t actually set, and let my boss identify people who were pretentious or ostentatious. Whether that’s a good judge of character or not, I’ll leave it up to you.