Using your Shinra-inspired Final Fantasy VII Remake Digital Watch is a breeze. To turn on the backlight, just press the designated button. You can switch between the 12 - hour and 24 - hour time display through the settings on the watch. The watch shows the date and day of the week automatically. When it comes to the watch bands, you can easily swap between the leather and metal bands by following the simple clasp mechanism. As for maintenance, keep the watch clean with a soft, dry cloth. Avoid exposing it to extreme temperatures or harsh chemicals. Since it's water - resistant to 5 ATM, it can handle most daily activities like hand - washing, but don't take it for a deep - sea dive. The battery (CR2025) will last about 2 years with normal use. When it's time to replace the battery, it's best to take it to a professional watch repair shop.