To ensure visibility in dark environments, the watch display is illuminated by a LED at the push of a button. The watch is built to withstand various conditions without sustaining damage. Its shock-resistant case provides protection against impacts and vibrations. The world time function displays the time in up to 29 different time zones. Elapsed time, split time, and final time are measured with an accuracy of hundredths of a second. The watch has a measurement capacity of up to 24 hours. The countdown timer helps remind you of special or recurring events by emitting an acoustic signal at the set time. The time can be set in minute increments and up to 24 hours in advance. This feature is particularly useful for daily medication intake or interval training.