Why does the mechanical watch calendar have the 31st of every month

Mechanical watches are driven by machinery, and the designers set the monthly calendar to 31 days when designing, which is to simplify the internal structure of mechanical watches and avoid overly complicated designs. Therefore, regardless of the number of days in the month, the calendar display of a mechanical watch will be set to 31 days per month.

However, it is important to note that the actual number of days in each month is not fixed, with 31 days of large moons, 30 days of minor months, and 28 or 29 day flat and leap months. If a mechanical watch encounters a small month, it is usually necessary to adjust the calendar manually.

In contrast, some quartz and electronic watches have a built-in perpetual calendar that automatically adjusts the calendar without the need for manual adjustment. Perpetual calendars for mechanical watches, on the other hand, often require manual adjustments or more complex automatic adjustment mechanisms.

In summary, the calendar display of mechanical watches is set to 31 days per month for the sake of simplification and ease of use. However, it should be noted that in reality, the number of days in each month is not fixed and needs to be manually adjusted according to the actual situation.

If there is a problem with the watch, it will display the 31st number every month, normally, it will be automatically skipped, for example, there is a 30th in this month, then the first will skip 31 to the first.

Not only is there the 32nd, but all the way to the 39th, congratulations on buying A goods, but you already know that it is A goods when you pay.

The working principle of a mechanical watch is destined to be 31 days per month, and the small moon can only be adjusted manually.

All mechanical watch date indicator wheels are 31 days, so that the 30-day and 28-day months can be displayed.

The calendar dial of the mechanical watch is 31 days, and in fact, the number of days in each month is not fixed, there are 31 days of big months, 30 days of small months, and 28 days or 29 days of flat months, leap months, in this case, you need to adjust the calendar separately, the way is to directly pull the watch handle out of a gear, twist the watch handle to adjust the calendar to the correct one.

1. For example, today is the 29th, first pull the crown (head) out of 1 grid to the date adjustment position, and twist the crown (head) up to adjust the calendar to the 28th.

2. Pull the crown to the second grid to adjust the time position, twist the crown (head) down to adjust the time 1 or 2 times, let the calendar automatically jump to the 29th, and then adjust the current time. If you adjust the time in the afternoon, you need to twist the time circle more than 12 o'clock to the afternoon!

How to adjust the calendar number 31 of a mechanical watch The adjustment button in the middle of the mechanical watch has two gears, the first gear is to adjust the date, and the second gear is to adjust the time. When adjusting the first gear, rotate backward to adjust the date to the 31st, and rotate forward to adjust the week. If the watch itself does not display the day of the week, there is no need to set the day of the week.

1. The day of the week and the calendar cannot be adjusted from 21 o'clock to 3 o'clock in the morning, which hurts the watch. The calendar is gear-driven, and it is generally slow.

1.The watch does not distinguish between large and small months, and each month is treated as 31 days, so in the case of small months, it is necessary to manually adjust it from the rest.

2.Some quartz watches and electronic watches have built-in perpetual calendars, so they do not need to be adjusted.

3.Calendar jumps are linked to time, so as long as the time is correct, the calendar will also jump at regular intervals.

4.The watch has a specific built-in mechanical structure to deal with the large and small months, and its logic is fixed, and the perpetual calendar of electronic watches and quartz watches is solved by chips or programs.

It should be adjusted on the 1st, and it can be adjusted in the morning and afternoon, but the adjustment method is different. Details are as follows.

In general, the crown can adjust the time, date, and day. The crown is pulled out in different steps to adjust the time, date, and day. When the crown is pulled out of different gears, there is a sense of pause. The specific steps are as follows:

Step 1: Pull out the two-bar crown and adjust the time to 6 o'clock.

Step 2: Push the crown back into place.

Step 3: Pull out the crown and adjust the date to the day before the current date.

Step 4: Pull out the two-compartment crown and toggle the crown so that the hands turn clockwise.

Step 5: Watch while turning the hands so that the date automatically jumps to the current date.

Step 6: Adjust the time to the current time.

The adjustment method of the 30th day of the month of the month of the mechanical watch is to pull out the knob and rotate the stop clockwise for 24 hours, and the calendar automatically jumps from the 31st to the 1st.

Mechanical watch adjustment of the date:

1. When adjusting, the date should be adjusted to the previous day; Then pull out the second section of the crown again and enter the adjustment time mode to adjust the time clockwise.

2. In the process of rotating the hand to re-point to 6 o'clock, if the date jumps, it proves that the morning time of Beijing time is adjusted.

3. To adjust the watch in the afternoon, you need to rotate clockwise again and adjust it to the current time after one week to make the correct date and day of the week display normally.

4. Push the crown back to its original position after adjustment.

Methods of adjusting the time of mechanical watches:

1. Do not adjust the date at 22 o'clock to 2 o'clock, and some watches to adjust the date at 20 o'clock to 4 o'clock, which is easy to cause damage to the watch and incorrect calendar jumping.

2. If you jump the calendar during the day, you can adjust it. If you find that the calendar is jumped around noon during the day, it is generally 12 hours faster or slower on the watch, for example, it is actually 11 o'clock in the morning, but the watch is 11 o'clock in the afternoon of the previous day, you only need to add the hour hand of the watch to one turn, that is, change the afternoon to morning. This situation is relatively common, with about a 50% probability.

3. Generally, the watch needs to be dialed clockwise when adjusting the time, not counterclockwise. <>