In order to keep everything in view even in dark surroundings, the display of the watch is illuminated by a light-emitting diode at the touch of a button. The clock is going through a lot without being damaged. The impact-resistant housing offers protection against impact and shocks. The World Time function displays the times in up to 29 different time zones. Elapsed time, split time and end time are measured with an accuracy of hundredths of a second. The measuring capacity of the clock reaches up to 24 hours. The countdown timer helps to remember special or recurring events by emitting an acoustic signal at the set time. The time can be set in minutes and up to 24 hours in advance. This function is particularly practical for daily use of medication or interval training.