The G-Shock GAB2100CT-1A5 Natural Co-Exist Black Watch. Crafted with a blend of carbon and bio-based resin, this timepiece boasts a sustainable design ethos. Featuring a cloth band made of traceable organic TRUECOTTON, it offers both environmental consciousness and durability. - 48.5 × 45.4 × 11.9mm Case Size - 57g Weight - Carbon/Bio-based resin Case and Bezel - Cloth band (Made of traceable organic TRUECOTTON) - Shock Resistant - Carbon Core Guard structure - 200 Meters Water Resistant - Tough Solar (Solar powered) - Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®) - Approximately 300 world time cities - Mineral Glass - World time: 38 time zones (38 cities coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping - Stopwatch - Timer - Alarm/hourly time signal - 5 daily alarms - Double LED light - Calendar: Full auto-calendar (to year 2099) - Mute feature: Button operation tone on/off - Power Saving (display goes blank to save power when the watch is left in the dark) - Approx. battery operating time: *7 months on rechargeable battery (operation period with normal use without exposure to light after charge) *18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) - Accuracy: ±15 seconds per month (with no mobile link function) - Regular timekeeping: *Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) *Digital: Hour, minute, second, pm, month, date, day