Immanuel Kant's Pocket Watch

Origin
When Immanuel Kant (1724 - 1804) was 46 he received the pocket watch from a friend, David Hume as a gift. David didn't know the paranoia effect that watch had and its powers only increased when in Kant's possession. Other philosophers dubbed this period in Kant's life as his Silent Decade because even though he locked himself in his house he still communicated through mail and that's how his friends learned that Kant's mind was starting to fall apart. After the decade was over Kant managed to place the watch in his safe, not removing it for just under twenty years.

Effects
Hands on the clock rotates backwards, watching these actions places voices in user's head that convinces them that people are out to kill them and take their work for their own. In history books Kant died of poor health however upon collection Agents discovered that Kant had taken to eating his own work to prevent others from taking it.