G-Shock GA2100-5A Carbon Core Guard 'CasiOak'

Step into a world of endless style with the iconic G-SHOCK watch featuring an octagonal design available in a variety of colors. This watch combines the octagonal bezel inspired by the legendary DW-5000 and the minimalist charm from the AW-500. It's engineered to be the slimmest and most compact while retaining all the toughness of its predecessors. Key features include shock resistance, a Carbon Core Guard structure for added durability, a scratch-resistant mineral glass, and 200-meter water resistance. The case and bezel are made of carbon and resin, and it comes with a comfortable resin band. The double LED light ensures visibility in any situation. It offers world time across 31 time zones (48 cities + coordinated universal time) with daylight saving on/off option. The 1/100-second stopwatch and countdown timer are great for sports and activities. With 5 daily alarms, a full auto-calendar until 2099, 12/24-hour format, and button operation tone on/off, it's a functional and practical timepiece. It also provides regular timekeeping with an accuracy of ±15 seconds per month.

Using your G-Shock GA2100-5A is a breeze. To set the time, just press the appropriate buttons on the side of the watch. You can switch between 12 and 24-hour formats according to your preference. For the world time function, select the city you want from the 31 time zones. The stopwatch and countdown timer are handy for timing events - just start and stop them as needed. The double LED light can be activated in low-light conditions by pressing the relevant button. When it comes to alarms, you can set up to 5 daily alarms to remind you of important things. The full auto - calendar will keep track of dates until 2099 without any manual adjustments. As for maintenance, keep your watch clean by wiping it with a soft, dry cloth regularly. Avoid exposing it to extreme temperatures and strong chemicals. Although it has 200 - meter water resistance, it's best not to leave it submerged for extended periods. With proper care, your G - Shock will serve you well for a long time.