Using this Seiko watch is easy. You can let it run automatically, but if you want, you can manually wind it to keep it ticking. When you first get it, give it a few manual windings to start the power reserve. To set the time, use the crown. Pull it out to the appropriate position to adjust the hour, minute hands, day, and date. For water resistance, it can handle normal water splashes and short swims, but don't take it for deep - sea diving. To maintain it, keep it clean by wiping it with a soft cloth regularly. Avoid exposing it to extreme temperatures and strong magnetic fields, as these can affect its performance.