The movement side of George Daniels' hand-crafted Space Traveler pocket watch, with two separate gear trains to indicate both mean-solar and sidereal time.

Prior to being called The Space Traveller, this timepiece was charmingly referred to as the Daniels Squared. A nod to the assistance of Professor Daniels, at Cambridge University, in helping George Daniels reduce the known error in the calculations used for the gear train by nearly a factor of four.