The Chronoscope RDM ('Réserve de Marche') tests the power reserve of mechanical watch movements and watches in a very easy and time-saving way. Power reserve testing accurate to the minute takes place autonomously, so that checks can be carried out regardless of the time of day and over the weekend.

Shown clearly and well laid out on the colour graphical display is the test sequence with a display of the remaining running time or results of the watches that have been tested. Watches that have not yet used up their remaining power can be taken out of the unit when it is still running without interrupting the checks taking place on other watches.