This G-Shock Mens watch is part of the G-Shock Premium Aviation collection. Basic Features:This G-Shock Premium Aviation unisex watch comes with chronograph, alarm, world time, calendar, day and date functions. The timepiece features G-Shock?s official two year guarantee. Its water resistance mark is 200M. The case is made of steel and the dial colour is black. The case width is 52 millimetres and the depth is 15 millimetres. Additional Features and Benefits:This multifunctional unisex watch gets energy for its functioning through the exposure to light. When fully charged, the watch can run for up to six months without needing exposure to light again. For convenience, the watch comes with a battery charge indicator and a power save function. Just like other G-Shock timepieces, this watch is shock resistant. It structure is designed to protect the mechanism against impact and vibration. The chronograph of the timepiece can measure up to 24 hours in 1/100-second increments. The stopwatch modes include elapsed time, split time and final time. The watch receives time calibration radio signals, which let it maintain accuracy. The reception is both automatic and manual. The world time function lets the timepiece provide information about 48 cities across the globe. Additional useful functionalities include an automatic calendar, five daily alarms, a countdown timer and 12/24 hour time display. Hands are luminous for improved night time visibility. The watch?s LED panel illuminates the dial. An afterglow function keeps the face of the watch lit for several seconds after the light button is released. Scratch-resistant mineral glass crystal adds to the resilience of the timepiece. The band is made of natural resin, which is flexible and durable at the same time.