Pocket Timepiece (sage ability)

Pocket Timepiece is an amateur-status sage ability that enables the character to create a functional pocket timepiece that keeps accurate time. While the timepiece must be wound every day, as it will not last longer than 24 hours, the timepiece sets the time accurately so long as it is exposed to the sun, the moon or the stars. The pocket timepiece will not set itself under a clouded sky or if underground. Still, the character can set the timepiece manually, guessing the approximate time, though of course the minute and hour hands will not be accurate.