The new G-SHOCK GA2100HD-8A is part of the cool Hidden Glow Series. Its design comes from the hidden abilities we all have but seldom show. This watch has a trendy look in grey, black, and white. The phosphorescent face shines a vivid green in the dark. G-SHOCK is known for innovation, toughness, and beauty, and this timepiece is no exception. It offers great functionality with a seamless design. Uncover the watch's hidden charm in the dark and be amazed by its unique luminescent features. With a case size of 48.5 × 45.4 × 11.8mm and weighing 51g, it has a carbon/bio-based resin case and bezel, and a bio-based resin band. It's shock-resistant with a Carbon Core Guard structure and has 200-meter water resistance. The battery lasts about 3 years on SR726W X 2. It features mineral glass, world time for 31 time zones, a stopwatch, timer, 5 daily alarms, double LED lights, a full auto-calendar until 2099, a mute feature, high accuracy, 12/24-hour format, a hand shift feature, and both analog and digital timekeeping.








Using your G-Shock GA2100HD-8A is easy. To set the time, find the buttons on the side of the watch. You can switch between 12 and 24-hour format as you like. The world time feature lets you see the time in 31 different time zones. Just use the buttons to select the city you want. For the stopwatch and timer, press the relevant buttons to start, stop, or reset. The alarm can be set for up to 5 times a day. To turn on the LED lights, press the designated button. You can choose the illumination duration. When it comes to maintenance, keep it away from strong magnetic fields and extreme temperatures. If it gets wet, dry it with a soft cloth. The battery will last about 3 years, but when it's running low, take it to a professional to replace it. And don't forget, it's water-resistant up to 200 meters, but avoid long - term immersion in hot water or saltwater.