The six-function electronic watch of Ditu brand is an imported product from Switzerland. The inaccuracy of the watch's date, referred to as the month not jumping, means that when you press the month display part, the month cannot be displayed, indicating that the month display function has failed. Similar situations include hour, minute, day of the week, and date not jumping, etc. These types of faults originate from the integrated circuit, where short circuits or open circuits on the integrated circuit layout, or faults in the internal logic system of the integrated circuit, may cause incomplete display functions in the timing section. Xin Shikong Watch Industry uses this watch as an example to introduce its usage and calibration methods. It has six functions: it can display hours, minutes, seconds, month, date, and day of the week, and can arbitrarily select the simultaneous display of hours, minutes, and seconds; hours, minutes, and day of the week; or hours, minutes, and date. Usage and Calibration. Night Light: Press S to display illumination in the dark. Basic Display: Pressing S1 and S2 buttons simultaneously will cause three displays to appear successively. When the desired display is selected, stop pressing the button immediately. Pressing S once will display the month, date, and day of the week, but it will automatically return to the basic display after 1.5 seconds. Below is the adjustment method for the watch's month, date, hours, minutes, and seconds. Month Adjustment: Press S three times, and the month will be displayed on the left. Then press S1 to adjust to the required month. Date Adjustment: Press S again, and the date will be displayed on the right. Then press S1 to adjust to the required date. Day of the Week Adjustment: Press S2 again, and the day of the week will be displayed. Then press S1 to adjust to the required day of the week.