KS Imperial Men's Automatic Mechanical Day Date Display Leather Band Wrist Watch KS239 Present by Kronen&Shne group, Imperial series. Precision Movement with the latest breakthrough "Kronen&Shne" Patented Mechanical Technology. Day date display. Cal. KM02L03 automatic mechanical movement inside. Water resistant up to 3 ATM (Not suitable for swimming, diving, shower etc.). 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.