Only watches with perpetual calendar function will automatically calculate leap months in leap years and skip small months without 3 1 day. Other ordinary watches with dates need to adjust the date manually.
1. If it is a longines mechanical watch, pull out the first gear to adjust the day and date, and pull out the second gear to adjust the time.
Second, first of all, at 24 o'clock, the hands are in the second half, and the time is 10 to 2 o'clock in the evening. Do not adjust the date, which may damage the date drive gear.
Third, then adjust the time from 10 to 2 pm, and then start to adjust the date by turning the knob. For example, today is the 26th. You have to adjust the date to the 25th, then dial it out, adjust the pointer to make the date jump to the 26th, and then adjust it to the correct time.
Fourth, pay attention, if it is morning, it is less than one lap. If it is afternoon, you need to turn 1 circle or more, so that the pointer at 24 o'clock is halfway through, and you must pay attention to the fact that 24 o'clock is in line with the real time.
5. If it is a Longines watch without a calendar, when the second hand runs to the position of 12, pull out the handle and rotate it clockwise to adjust the time.
6. If Longines watch has no seconds, you can adjust the minute hand to the first two minutes when you want to adjust the time, and then push it back to the handle.
7. If it is a longines watch with a calendar, pull the handle out a little, you can adjust the day clockwise, adjust the date counterclockwise, pull the handle out to the outside and adjust the time. The specific operation is the same as that of a watch without a calendar.