Both the digital and analog sections of the dial illuminate when the EL backlight is activated. The shock-resistant construction protects against impacts and vibrations. A luminescent coating provides lasting illumination in the dark after just a brief exposure to light. The watch displays the current time in major cities and specific regions around the world. Elapsed time, lap time, and finish time are measured with 1/100-second accuracy. The watch can measure times of up to 24 hours. The countdown timers help you remember specific or recurring events by emitting an acoustic signal at a preset time. The time can be set with second accuracy and up to 24 hours in advance. The daily alarm reminds you of recurring events with an acoustic signal at the set time. This model features 5 independent alarms for flexible reminders of important appointments. At the push of a button, the hands are movable, allowing for an unobstructed view of functions such as the stopwatch or date. The key tones for using the mode button can be turned off.