G-SHOCK [Shock-resistant structure/Water resistant to 20 ATM] G-SHOCK's core technology that pursues toughness Protects the module with a shock-resistant structure The unique concave-convex shape prevents direct impact on the glass and buttons. It can be used in a variety of places and situations, from daily water work to water activities such as swimming, surfing, and jet skiing. [Mobile link function] Functions can be linked with compatible mobile phones via Bluetooth communication. [Radio clock] By receiving radio waves with time information, you can display the correct time. *Compatible with standard radio waves in Japan (both 2 standard radio stations), the United States, the United Kingdom, Germany, and China.