The perfect combination of durability, wearability and functionality, this Casio G-Shock MT-G Chronograph Men’s Watch is ready for anything. Bluetooth connectivity will keep you up to date and connected to the world around you. At A Glance  Presented on a layered composite band with one touch three-fold clasp 55mm stainless steel and resin case and black ion plated bezel Water resistance of 200m Temperature resistance of -10°C Shock resistant patented Hollow Core Guard Structure protects against impact and vibration Shock resistant, vibration resistant and centrifugal force resistant The automatic hand adjustment function checks the home position of the hands every hour and corrects if necessary, counteracting any discrepancies arising from impact or magnetic forces LED light with afterglow Simultaneous display of the current time in two different time zones A luminous coating on the watch hands provides illumination in the dark Up to 2m the watch can be wirelessly connected to a compatible smartphone or tablet via Bluetooth Smart Access makes it easy to operate multi-function watches, simply pulling out and rotating the crown provides intuitive control over all functions High-clarity sapphire crystal glass with the highest level of scratch resistance and non-reflective coating A high-capacity solar-charging system harnesses the power of any light source for reliable watch operation with minimal impact to the environment Approximately 5 months of battery life on full charge (without further exposure to light)