The GA-1100-2ADR is the Casio G-Shock GRAVITYMASTER Shock Resistant World Time. An Item for Men In addition to its robust exterior, it has a number of practical features, such as an LED light, a thermometer, and a function involving a fixed bezel. Furthermore, it displays location-specific alerts for impending earthquakes and other natural disasters. Casio G-Shock's design history can be traced back to its inception. This glass is resistant to force and difficult to break. This material is relatively flexible, so even after several hours of wear, it will not exert excessive pressure on your wrist. A spherical mineral or crystal constitutes its composition. The Strap markers are readily readable when the watch is worn due to the resin Strap that surrounds them. In addition, it includes a chronograph that can count down to 1/100th of a second for precise timing, as well as five daily alarms.