The software also comes equipped with basic utilities like a stop watch and calculator. Stop Watch and the Cross (Boomerang). NATSO has published the bimonthly Stop Watch magazine since 2011. He marked his television debut at the age of thirteen on PTV's drama "Stop Watch". A stop watch was depicted as an instrument to measure `revolution'. The stop watch can also record split times and 1st and 2nd place times. The stop watch also has the feature to mark net and split time (lap). ISP has used aircraft for speed enforcement, using stop watch time measurement, since 1959. A stop watch, either spring wound or digital, may also be used for celestial observations.