Brand new modified CASIO G-SHOCK GA-2100-5AER watch in a stainless steel case. Package: - original CASIO G-SHOCK GA-2100-5AER watch in a modified steel case, dial bracelet - original aluminium box - original black dial - original silicone case and strap - manual - warranty card - screwdriver tool FEATURE DESCRIPTION WATER RESISTANT 200 Metres Water Resistant ACCURACY +/- 15 seconds per month ALARM FUNCTION Hourly time signal: The watch beeps every hour on the hour AUTO CALENDAR Once set, the automatic calendar always displays the correct date BAND MATERIAL Resin BATTERY LIFE Approximately 3 years CORE GUARD STRUCTURE New Carbon Core Guard Structure COUNTDOWN TIMER FUNCTION Countdown Range: 24 hours, Measuring Unit: 1 second DATE AND WEEKDAY DISPLAY The current date and week day are displayed on the watch face DATE DISPLAY The current date is displayed on the watch face DIMENSIONS 48.5 x 45.4 x 11.8 mm LOW TEMPERATURE RESISTANT -10 C/ 14F SHOCK RESISTANT Patented Hollow Core Guard Structure protects against impact and vibration STOPWATCH FUNCTION Measuring Capacity: 60 minutes, Measuring Unit: 1/100th second VIBRATION RESISTANT Resistant against vibration from heavy duty operations WORLD TIME Displays the current time in major cities and specific areas around the world