Rex~! This is Mike! He's not like exactly a service goat! Not yet! Puella's going to help me train him!

[He's gathered some choices for Rex from his accessory box.]

Okay! I found a few watches and I don't know which one's best for whatever it is you're actually doing, but here you go!

[He tosses the watches on his desk. One is quite large with several dials. The second is a much smaller yellow Rilakkuma watch. The third is a horribly gaudy sparkle fest. Take your pick, Rex.]