G-SHOCK GB001RG-4 8-Bit Retro Vibes Express your personal style with the customizable G-B001 line from G-SHOCK, blending playful designs with practical features and Smartphone Link connectivity. Channelling the nostalgic retro and gaming aesthetics of the 1980s, this collection features interchangeable translucent bands and two-tone moulded resin bezels, offering a modern twist on classic models. - 50.3× 47×18.7mm Case Size - 59g Weight - Carbon/Resin Case and Bezel　 - Resin Band - Shock Resistant - Carbon Core Guard structure - 200 Meters Water Resistant - Approx. battery life: 3 years on CR2016 - Mobile link (Wireless linking using Bluetooth®) - Approximately 300 world time cities - Mineral Glass - World time: 38 time zones (38 cities + UTC), city code and name display, daylight saving auto-switching, and home/world time city swapping - Stopwatch - Timer - 5 Daily Alarms - Calendar: Full auto-calendar (to year 2099) - Accuracy: ±15 seconds per month (with no mobile link function) - 12/24-hour format - Date/month display swapping - Day display (days of the week selectable in six languages) - Regular timekeeping: Hour, minute, second, pm, month, date, day