GURPS: The Town
The Old Man's True Timepiece
A time-bending silver pocket watch
Designed to his personal specifications for Aldous Merschman and enchanted by his own efforts over many years, this silver pocket watch is the true reason for the Town’s many time jumps.
The face has too many dials and hands, and there’s a stopwatch-style button on the side. If the bearer presses that button, all time stops in an unknown radius (but one at least two or three miles wide) except for that of the user. It uses 1FP per subjective minute in opporation and may have other, as yet unknown, side effects or drawbacks.