how to adjust week and calender of the mechincal watch? What are the considerations?

R:

1. Week and calendar cannot be adjusted at 21 PM to 3AM, that it hurt watch. Calendar is beat of the driven gear, tend to be gently run.

2.There are differences from mechanical watch and quartz watch, quartz watch date and week are at zero point jumps, this kind of precision in the electronic watch only. mechanical watch pointer is not so accurate, it may be in advance or delay, this is reason why the date and the week are both rim to push.

3. If at the same time jumps, driver requires a lot. So it should separate change. In generally, week will change after date skip half to a few hours. 

4. If you meet the date of the watch at noon 11 o 'clock, 12 o 'clock and 1 PM to jump. Don't worry, as long as the hour hand clockwise revolution,then re-adjust the date on it.

5. In the middle of the two-block are adjustment knobs, the first stop is to adjust the date, the second block is to adjust the time. First gear adjustment,afterward rotation is transferred  date, forward rotation is transferred week. If it does not have week display, then it doesn’t need set.