Specification 1) Surface width: 4cm 2) The total length of the watch: 25.5cm 3) Band width: 2cm 4) Dial thickness: 1.2cm 5) Watch Weight: 53g How to use Mechanical Watches: 1. put on your watch and swing your wrist back and forth for approximately 30 seconds to initialize power reserve.If it is hand-wind watch,You need wind it up manually. 2. Set the time by turning the crown clockwise 3. Note that your self-winding mechanical watch may stop overnight or appear to be running slowly.This does not necessarily indicate a malfunction or defect in the watch. It indicates that there is insufficient wrist action,kinetic energy,while wearing the watch. 4. Please wear your watch at least 8 hours a day to maximize power reserve 5. If watch is not worn for extended period of time,please rewind by moving the watch back and forth for 30 seconds in order to initiate the power process 6.1t is recommended to repeat steps 2-4 every night before removing your watch for the first week after purchase 7. Wear your watch daily or every couple of days for keeping accurate time. 8. Please note that shock and vibrations may affect the. mechanism.Please remove your watch when doing hard labor or extreme sports. Important Note: clockwise for winding, and anticlockwise for time correction This watch has no property of water resistance, please, keep it off water or moisture or other liquid solvents.