4, radio wave watch is based on the optical kinetic energy through the watch built-in radio wave receiver and antenna, receive from the transmitter tower issued by the "standard time" radio waves, get the moment and the calendar and so on. The watch automatically corrects the time and date of the watch by receiving the "standard time" radio waves sent from the transmission tower through the built-in radio wave receiver and antenna of the watch and obtaining the data such as the moment and the calendar.
Citizen's radio wave watches all use optical kinetic energy movement, there is light, there is energy, as long as it can receive the radio waves, there will always be no error, no need to manually adjust the time and date.