Meet the G-Shock GA100CB-1A Black and Blue Watch, a fusion of resilience and sophistication. Crafted to endure the toughest conditions, this timepiece boasts a case size of 55 × 51.2 × 16.9mm and a weight of 72g. Engineered with a robust resin case, band, and bezel, it's resistant to shocks, magnetic forces, and water up to 200 meters. Powered by a CR1220 battery, it delivers approximately 2 years of uninterrupted performance. Dive into its features, including world time functionality covering 29 time zones and 48 cities, a suite of alarms, stopwatch, and timer. Its LED light ensures visibility in any environment. With precision timing and a sleek design, the G-Shock GA100CB-1A is the ultimate companion for every adventure. - 55 × 51.2 × 16.9mm Case Size - 72g Weight - Resin Case, Band and Bezel - Magnetic Resistant - Shock Resistant - 200 Meters Water Resistant - Approx. battery life: 2 years on CR1220 - Mineral Glass - World time: 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping - Stopwatch - Timer - Alarm/hourly time signal: 5 daily alarms (with 1 snooze alarm) - LED light: Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow - Calendar: Full auto-calendar (to year 2099) - Accuracy: ±15 seconds per month - 12/24-hour format - Regular timekeeping: *Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed) *Digital: Hour, minute, second, pm, month, date, day