This brand - new G - Shock GM - 5600 - 1DR model combines a resin case interior with a stainless - steel bezel cover. This combination offers an elegant look while keeping the watch lightweight and comfortably fitting on your wrist. The light - on - dark LCDs enhance the overall stylish appearance of these timepieces. The new 5600 Series watches uphold the original G - SHOCK concept, and at the same time, improve timekeeping quality, design, and comfort. The package comes with a variety of useful features, such as shock resistance, an electro - luminescent backlight with afterglow, a flash alert, a 1/100 - second stopwatch, a countdown timer, a multi - function alarm, an hourly time signal, a full auto - calendar until 2099, 12/24 - hour format. It can show regular time details including hour, minute, second, pm, month, date, and day. With an accuracy of ±15 seconds per month and an approximate battery life of 2 years on CR2016, the case size is 49.6x43.2x12.9mm.

Using your G - Shock GM - 5600 - 1DR is a breeze. To start using the stopwatch or countdown timer, just press the relevant buttons on the side of the watch. The multi - function alarm can be set according to your needs, and you'll be alerted by the hourly time signal or the flash alert. When it comes to the electro - luminescent backlight, press the backlight button, and you'll enjoy the afterglow effect. As for maintenance, keep it away from extreme temperatures and strong magnetic fields. Don't expose it to water for too long, even though it's shock - resistant. When the battery is about to run out after around 2 years, replace it with a CR2016 battery. This will help your watch keep ticking accurately for a long time.