Casio Digital Watch PRT-B50-1ER Pro Trek collection. Clock with resin case 50 mm in diameter and 15 mm thick. Analog and digital dial. Model equipped with Bluetooth® Smart, Smartphone time, Double illumination, Neobrite, Digital compass, Barometer (260 / 1,100 hPa), Thermometer (-10 ° C / + 60 ° C), Altitude detection up to 10,000 m, Detection of altitude 'accumulation altitude, Altimeter data memory, Steptracker, Sunrise and sunset display, Location Indicator, Track Log, World time function, Stopwatch - 1/100 sec - 24 hours, Timer - 1/1 min. - 24 hours, 5 daily alarms, Activation / deactivation of the key sound, Hand movement function, Telephone search, Automatic calendar, 12/24 hour format, Mineral glass, Battery level indicator, 2 years - 1 battery. Blue resin strap with buckle closure. Water resistance classification (10 bar), delivered with original box and official guarantee. bf22