Introducing the G-Shock GM2100BB-1A CasiOak, a rugged timepiece that combines durability, style, and functionality. Designed to withstand the toughest conditions, this G-Shock watch features a tough black resin case and band, ensuring exceptional shock resistance. The bold and modern blacked-out design exudes a sleek and sophisticated look, perfect for the contemporary gentleman. With multiple time zones, stopwatch, countdown timer, and daily alarm functions, this watch offers practicality for everyday use. Whether you're exploring the outdoors or navigating the urban jungle, the G-Shock GM2100BB-1A CasiOak BB Edition is the ultimate companion, blending reliability and fashion-forward aesthetics in one striking timepiece. - 49.3 × 44.4 × 11.8mm Case Size - 72g Weight - Resin/Stainless steel Case and Bezel - Resin Band - Shock Resistant - 200 Meters Water Resistant - Approx. battery life: 3 years on SR726W X 2 - Mineral Glass - World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off - 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 - Accuracy: ±15 seconds per month - 12/24-hour format - Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) - Regular timekeeping: *Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) *Digital: Hour, minute, second, pm, month, date