・Shock-resistant structure (Shock Resist) ・Hand retraction function (when the hands overlap with the LCD display and are difficult to see, the hands can be temporarily retracted from above the LCD display) ・World Time: 48 cities around the world (31 time zone, summer (with time setting function) + UTC (Coordinated Universal Time) time display, home time city replacement function, stopwatch (1/100 second (less than 1 hour) / 1 second (more than 1 hour), 24-hour meter, with split) Timer (single set) position: 1 second, maximum setting: 24 hours, measured in 1 second increments)・5 time alarms・time signal・fully automatic calendar・12/24 hour display switching・operation sound ON/OFF switching function・double LED light:・LED light for dial ( (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds))・LED backlight for LCD section (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds))・Accuracy: Average Monthly difference ±15 seconds Case (length x width x thickness): Approx. 48.5 x 45.4 x 11.8mm Accessories: Instruction manual (English) G-SHOCK original box G-Shock Analog Digital 2100 Series Black Quartz Men's Watch GA-2100-1A3DR G-SHOCK ANALOG-DIGITAL 2100 Series Ana-Digi All Black Resin From G-SHOCK, the toughness watch that continues to evolve in pursuit of insatiable strength, neon color accents Introducing the adopted NEON ACCENT series. Neon colors are used throughout the dial to improve visibility. The GA-2100 has a distinctive octagon bezel, giving it a cool look. This is a casual and easy-to-style model that is perfect for street fashion as well as outdoor scenes. Domestic model product number: GA-2100-1A3JF