CASIO B640WB-1BEF Collection Unisex Watch 35mm 5 ATM

LED light
A light-emitting diode (LED) is used to illuminate the watch face.

Display Flasher
A light diode flashes as soon as an alarm, a countdown-time or the hour signal has been reached.

Stopwatch function – 1/100 sec. – 24 hours
Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours.

Timer – 1/1 sec. – 24 hours (with automatic repeat)
For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. They then count back automatically from the preset time. The time can be set to the nearest second and up to 24 hours in advance – Ideal for people who need to take medicines every day or those who do interval training.