The Doctor's Fob Watch

 

In order to avoid the Family of Blood, The Doctor had to make himself human, so he hid his Time Lord consciousness inside a small fob watch which he entrusted to Martha Jones.

He then lived as a school master, John Smith and had no memory of being The Doctor.

His oldest enemy The Master, also a Time Lord, owned a similar fob watch with the same powers which he also used to create a human identity - Professor Yana.

This fully working fob watch complete with chain, has detailed engraving on the case and features speech, light & sound effects. 

Requires 4 x LR44 batteries which are included.