KS Royal Carving Men's Analog Skeleton Dial Leather Band Automatic Mechanical Watch Royal carving series Crystal case back "Kronen&Shne" Patented Mechanical Technology Skeleton style dial Please note this is a MECHANICAL WATCH which will stop working if you are not moving for a long time. Please wind up the watch before EVERY USAGE, and keep the watch away from magnets to ensure the watch keeps working. For detail instructions of the watch, you can access our Kronen & Shne official website to download. If any questions, dont hesitate to contact us.