DWISS RW1 wandering hours

How to read the time: The rotating satellite display shows the hours and points to the correct minutes around the dial from 3h to 9h. The wandering hours concept was first created in the XVII century by the Campanus brothers for Pope Alexander XII. It consists of an arm with discs at the ends that rotate and show the current hour and point to the minutes along the arc-shaped track. This time display was used in the past in some wall and table watches by skilled watchmakers and just recently added to wrist watches.