The G-Shock GA2100RW-1A Men's Sports Watch adds a lively touch to the classic design. It features a rainbow-colored brick wall pattern on the watch glass or dial, evoking memories of the original G-SHOCK. Using advanced rainbow vapor deposition technology, it vividly recreates the iconic brick wall image, with colors that transform under different lighting conditions. This colorful design pays homage to the spirit of G-SHOCK, representing the toughness and determination to overcome obstacles and keep pushing forward. With a case size of 48.5 x 45.4 x 11.8mm and a weight of 51g, it's shock-resistant and built with a Carbon Core Guard structure. The case, bezel, and band are made of carbon, bio-based resin, offering both durability and eco-friendliness. It comes with mineral glass for scratch resistance. The watch supports world time across 31 time zones (48 cities + coordinated universal time), with daylight saving on/off. Other features include a timer, a full auto-calendar until 2099, a stopwatch, an alarm/hourly time, and a mute function. It has an accuracy of ±15 seconds per month and an approximate battery life of 3 years with two SR726W batteries. It supports 12/24-hour format and has a hand shift feature for an unobstructed digital display view. It's also 200 meters water-resistant. For regular timekeeping, it offers both analogue (2 hands for hour and minute, moving every 20 seconds, and 1 dial for the day) and digital (hour, minute, second, pm, month, date) displays.



Using your G-Shock GA2100RW-1A watch is a breeze. To set the time, just follow the instructions in the user manual. You can switch between the 12 and 24-hour formats according to your preference. The world time feature lets you easily check the time in different cities around the world. Simply select the city you want from the list of 31 time zones. The timer, stopwatch, and alarm functions are also straightforward to use. For the timer, set the desired time and start it when you need. The stopwatch can be used to time events. And for the alarm, set the time you want it to go off and turn it on. As for the hand shift feature, when you want to see the digital display clearly, the hands will move out of the way automatically. Now, here are some things to keep in mind. This watch is shock-resistant, but it's still a good idea to avoid dropping it or subjecting it to extreme impacts. It's 200 meters water-resistant, which means you can wear it while swimming or snorkeling, but don't take it for deep-sea diving. When it comes to maintenance, keep the watch clean by wiping it with a soft, dry cloth regularly. Avoid exposing it to chemicals or solvents as they can damage the case, band, or glass. If the battery runs out after about 3 years, take it to a professional to replace the SR726W batteries. By following these simple steps, your G-Shock watch will serve you well for a long time.