Analog chronometer technology is already predictable enough; a white circle with evenly spaced numbers makes the experience of telling the time so mundane and monotonous. The Eclipse Clock, on the other hand, offers its reader the mesmerizing delight of a constantly altering face that makes discovering the hour much more interesting.
The dial that Constance Guisset designed is made up of several overlapping circles that pivot. On these are printed clusters of tiny white dots that contrast greatly with the dark black background. You'll be able to discern the placement of the hour and minute hands but the image behind them is a consistently transforming optical illusion. Perhaps if you're entranced by the watching Eclipse Clock, time will actually speed up.