Using your Seiko Prospex Ice Diver watch is easy. Just set the time and date using the crown. You can adjust it to the correct time with a gentle turn. When it comes to water resistance, it can handle a dip in the pool or a light swim up to 200 meters deep, but don't go for deep - sea diving without checking with Seiko. For power, it will run for about 70 hours on a full wind. Try to wind it regularly to keep it accurate. To maintain your watch, clean it with a soft, dry cloth every now and then. Avoid hitting it against hard objects as it can damage the case or the internal mechanism. If you notice any problems, take it to an authorized Seiko service center for a check - up.