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 classic 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 plasticThis model has colors that are easy to style from dress to casual occasions.- Shock-resistant structure - Water resistant to 20 ATM - Hand retraction function (If the hands overlap the LCD display and are difficult to see you can temporarily retract the hands from above the LCD display.) - World time: 48 cities around the world (31 time zones daylight saving time setting function included) + UTC (coordinated universal time) time display - Stopwatch (1/100 second (less than 1 hour) / 1 second (more than 1 hour) 24 hours total with split) - Timer (set unit: 1 second maximum set: 24 hours measured in 1 second increments)・ 5 time alarms・ Time signal・ Full automatic calendar・ 12/24 time display switching・ Operation sound ON/OFF switching function・ Double LED light: LED light for dial (super illuminator afterglow function afterglow time switching (1.5 LED backlight for LCD section (with super illuminator afterglow function and afterglow time switching (1.5 seconds/3 seconds))・Battery life approximately 3 years