KS Imperial Men's Leather Band Automatic Mechanical Day Date Wrist Watch Present by Kronen&Shne group, Imperial series. With Cal. KM02L06 automatic mechanical movement inside. Small second hand at 6 oclock and with day, date display. 3ATM Daily water resistance, suitable for everyday use, like splash. NOT suitable for swimming, diving, shower etc. Case diameter: 40mm,thickness: 15mm. Band Length: 210mm max, buckle included. 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, please don't hesitate to contact us.