The cover is intricately designed with a subtle interlocking pattern and room for engraving personal initials This Pocket Watch is a classic design for anyone to appreciate. How To Use a Mechanical Watch: This is a mechanical watch, powered by a winding spring manually( no batteries needed). perfect gift for any occasion. The crystal face and back cover brilliantly showcases the skeleton and mechanics of the clock inner workings, giving it an antique feel that any pocket watch lover would enjoy. Package Included:1 PC Pocket Watch 1. When you first wear it, please wind the watch by turning the button on the side of the watch, until it is full. 2. By taking the button out slightly, you can adjust the time, then push back the button. 3. If you leave it still for a long time, please swing it lightly for a few minutes and wind-up by several laps. At this time, it will work normally. 4. If still have any questions, please feel free to contact us for support. Hints and Tips: . Fully winded, the power reserve of watch can reach 36 hours. . If you wear it more than 10 hours per day, extra winding up will not be necessary.