The GRUNGE CAMOUFLAGE Series is inspired by grunge fashion from G-SHOCK which continues to evolve in pursuit of toughness. The base model uses two models from the metal covered series: the standard GM-5600 and the octagon bezel GM-2100. Inspired by the grunge fashion that emerged from vintage clothing and rock music culture in the 90s the metal bezel is specially processed to have a pattern that looks like the metal has peeled off expressing the coolness of grunge fashion. . The dial (GM-2100GC) and glass printing (GM-5600GC) are painted metallic to create a style that matches the metal bezel. The band uses biomass plastic. This model has colors that are easy to style from dress to casual occasions. - Shockproof structure - 20 ATM waterproof function - Stopwatch (1/100 second (00000 - 595999) / 1 second (1:000 - 23:5959) 24 hour meter with split) - Timer (set unit: 1 second maximum set: 24 hours measures in 1 second increments auto-repeat)・Multi-alarm・Time signal・Full auto calendar・12/24 hour display switching・LED backlight (with super illuminator and afterglow function) - Alarm flash function (alarm/time signal/timer linked light emission)・Battery life approximately 5 years