Using your West End Watch Co. Sowar Prima is a breeze. Just set the time and date as you would with any regular watch. The luminescent hands and numerals make it easy to read the time even in low - light conditions. For water resistance, it can handle normal splashes and brief immersion, but don't wear it for long - term swimming or diving. To keep it in top shape, wipe it with a soft cloth regularly to remove dust and dirt. Avoid exposing it to extreme temperatures or sharp objects that could scratch the sapphire crystal. If you want to clean the NATO band, you can gently hand - wash it with mild soap and water. And remember, if you're not satisfied with your purchase, you can return it within 30 days.