Using your Citizen BU2110-01A Eco-Drive watch is a breeze. Just expose it to light regularly to keep it powered. Since it has a 6 - month power reserve, you don't need to worry about it running out of juice quickly. When setting the time, follow the instructions in the user manual carefully to ensure accurate timekeeping. As for wearing it, the leather strap is very comfortable, but make sure it's adjusted to a proper length. For water activities, it can handle up to 100 meters of water resistance, so it's safe for swimming and water sports. However, avoid pressing the buttons underwater as it may affect the water - tightness. To maintain your watch, clean the stainless steel case with a soft, dry cloth regularly. For the leather strap, keep it away from excessive moisture and chemicals to prevent damage. If you notice any issues with the watch's operation or accuracy, it's best to take it to a professional watch repair service.
