Using this men's automatic mechanical watch is quite simple. Just wear it on your wrist and the buckle makes it easy to fasten. The automatic self - winding movement means as you move your arm during the day, the watch winds itself up. For swimming or water activities, it can resist water up to 5Bar, but don't keep it underwater for too long. When it comes to maintenance, keep it away from strong magnetic fields as they may affect the movement. Clean the stainless - steel band and case regularly with a soft cloth to keep it looking shiny. If you don't wear the watch for a long time, you can wind it manually a few times to keep the movement working well.