The Casio PRT-B50-1ER is a multifunctional watch designed for outdoor activities. It features a quad sensor system that includes a digital compass, barometer/altimeter, thermometer, and a 3-axis accelerometer for step counting. The watch connects to the PRO TREK Connected app via Bluetooth®, enabling automatic time adjustment, activity tracking, and route logging. It offers 100-meter water resistance and operates in temperatures as low as -10°C. The case and bezel are made of resin, and the watch is equipped with a resin band. The mineral glass protects the dial, which displays both analog and digital time. Additional features include world time for 38 cities, sunrise and sunset times, a stopwatch, countdown timer, five daily alarms, and double LED lighting with selectable illumination durations. The approximate battery life is 2 years on a CR2025 battery. Reference number: PRT-B50-1ER.