The Happy Hour Watch is designed with a certain type of person in mind. Specifically, the type of person who looks forward to drinking at exactly 5pm every day. It only has the 5 o'clock hour marked on the analog part of the watch, which is OK. But the real fun is on the strap.
Yes, there's a built-in bottle opener on it. Now I'm no boozehound, and I think the face of this watch is pretty ugly, but I sure wouldn't mind having a bottle opener on my watch strap. It's just always there and totally convenient. Come on, Rolex, get with the program.