Super LED Dual illuminator. 30 Lap Memory. Step Tracker with Achievement Alert. Shock resistant. 200m water resistant. Double LED light. LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow). GREAT QUALITY: This awesome quality item comes in a variety of sizes and colors. G-SHOCK watches stand out with their tough design, but also with their technical refinements. G-Shock is designed to resist mechanical shock and vibration. Its full form is Gravitational Shock. The ultimate tough watch. Guided by a "Triple 10" concept development, the design teams sought a watch with 10-meter free-fall endurance, 10-bar water resistance, and a 10-year battery life.