The G-Shock GA100B-4A Red Watch combines rugged durability with striking style. Its red resin construction, shock resistance, and 200 meters water resistance make it ready for any adventure. With features like world time, stopwatch, timer, and alarms, it's functional and reliable. Plus, the precise timekeeping and full auto-calendar ensure you stay on schedule in style.- 55 × 51.2 × 16.9mm Case Size- 70g Weight- Resin Case, Band and Bezel- Shock Resistant- Magnetic 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