Signal watch

Jimmy receives the watch.

The Signal watch was a seemingly normal watch that Superman gave to Jimmy Olsen.


After freeing Jimmy Olsen from Metallo's clutches, it became clear to Superman that his pal was in danger because of their ties. He gave Jimmy a special watch that could emit a hypersonic signal that only Superman could hear.

Superman also gave a watch to Batman, but it was destroyed in a battle with the Imperium before he could use it. Huntress used Jimmy's watch — after capturing him — to contact Superman for help with finding the Question.


Superman: The Animated Series

Justice League

Justice League Unlimited

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