Embark on a journey tracing the footsteps of Japan's fabled ninjas as G-SHOCK immerses you in the realm of ancient Japanese martial arts, shrouded in mystery and intrigue. Every facet of this timepiece draws inspiration from the covert world of these secret agents who operated incognito to serve powerful shogun and daimyo figures in historical Japan. The Japanese term for "ninja" is written as 忍者. The character 忍 comprises elements symbolizing a blade over a heart, while 者 translates to "person." This combination conveys the unwavering dedication and resilience required of every ninja—an ethos mirrored at the core of the G-SHOCK identity. GA-2100NNJ: Features a gray translucent band and bezel evoking the smoke of the fireball, with hot stamped latticework in the style of chain armor. Katon no jutsu — One of the tonjutsu arts by which ninjas hid from and evaded their enemies, the katon no jutsu involves using fire to distract enemy attention, conceal oneself, or create a diversion. This could be done by, for example, setting fire to straw or wood, with fire arrows or ninja stars packed with gunpowder and a fuse. Case size (L× W× H) 48.5 × 45.4 × 11.8 mm Weight 56 g Case and bezel material Carbon / Resin Band Resin Band Construction Shock Resistant Carbon Core Guard structure Water resistance 200-meter water resistance Power supply and battery life Approx. battery life: 3 years on SR726W X 2 Glass Mineral Glass Compatible band size 145 to 215 mm Other Neobrite