Smith type, encased in a metal case with fly-back action. At the right side of the case is the stop and start lever, the operation of which enables a timer to be started and stopped as desired. On the other
side of the case is a press lever which returns the hands to zero, after the mechanism has been stopped by means of a stop lever. A subsidiary dial recording 0 to 60 minutes is provided below the
second hand. Least Count: 1 second.