I can't shake the feeling that somehow the watch that Belldandy gave him will factor into how he solves whatever riddle he will have to solve to ensure that he can stay by Bell's side forever. I can't wait to see how it happens, if Fujishima-sensei does use it. (He is big on little details like that. I can't imagine that she would have given him the watch if it wasn't going to be important in this trial, even as a reminder of how special she is to him and how much she understands him, deep down.)