Using this watch is easy. If you choose the mechanical hand - winding option, just turn the crown gently clockwise to wind up the watch. For the automatic self - winding function, simply wear the watch regularly, and the movement of your wrist will wind it up. When it comes to water resistance, it can handle splashes and brief immersion up to 3Bar, but don't wear it for swimming or diving. To maintain your watch, keep it away from strong magnetic fields as they can affect the movement. Wipe the watch with a soft, dry cloth regularly to keep it clean. And store it in the provided paper box when not in use to protect it from scratches.