With Carbon Core Guard structure this watch takes toughness to a new level. The case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin. This material protects the internal module from shock-induced damage and deformation. The dual back cover protects the back surface against impact. Button structure shock resistance has been improved, which eliminates the need for external button guards. The face of the watch consists of a disk pointer and raised hour markers for a look of bold toughness. This new standard bearer of the G-SHOCK lineup combines a new shock resistant structure with urban outdoor styling that reflects its toughness. A new level of toughness Carbon Core Guard structure A new carbon core guard structure protects the module by enclosing it in a carbon case made of fine resin embedded with carbon fibers for outstanding strength, crack resistance, and durability. The new shock resistant structure marks an important advance of G-SHOCK core technology, making this model the new standard bearer of the G-SHOCK lineup.