A so-so episode called "A Kind of a Stopwatch" first aired on Oct. 18, 1963.
A chatterbox loser is given a watch that can stop and restart all human activity. Everybody just freezes in place until he re-clicks it.
He uses it to rob a bank. But it doesn't end well for him.
I'll spare your delicate sensibilities by not telling you what use certain adolescent boys immediately thought of for such a magical watch.