Third, the calendar and the tourbillon, said the watch one of the three complex functions, regardless of the level of sophistication, talk about the calendar today. Noun origin: This title in the watch before there are two versions, one: claiming to be the oldest of our ancient legend of a solar calendar, when people in memory of this calendar editor, passed on to future generations, it is called the calendar, One of the "million years" is used to symbolize a great time span; Two: are sitting under the tree, foreign Newton, we have "years" (figure can not find Orz, put a Newton mean), the woodcutter up the hill cut firewood sat under the tree Rest, suddenly thinking about how to set the order, the tree shadow cast on the ground gave him inspiration to go home and made a simple sundial, the result of a rainy cloudy to no avail, and then hand-made funnel combined with the five days of the season Long-term observation, finally ... The second argument to be verified, but the ancients in order to write a complete inspirational story is also painstaking, regardless of true and false, even if the fake whatever the outcome is autonomous fabrication, at least did not say anything is ours. The modern calendar master calendar shows the Gregorian calendar, Lunar New Year and Huang calendar, easy for people to inquire about, but it and watch the calendar does not have an egg. Related history: In fact, the Perpetual Calendar appears in the watch and is directly related to the Pope of Italy - the introduction of the modern calendar reform by Pope Gregory XIII in 1582 to " 4 years an intercalary, hundred years non-intercalary, four hundred years intercalary "form (nowadays Gregorian calendar). Once the new calendar is implemented, the witty watchmakers immediately begin the trial of the calendar. It was not until 1615 that the first watch in the history with a calendar function appeared in Geneva. In 1764 Britain's watchmakers transplanted it to a pocket watch. The sophisticated precision gears meshing objectively reflect the calendar, creating a perpetual calendar for modern watches Function has laid the technical and structural basis. The 1867 Patek Philippe's first calendar pocket watch has finalized the basic display mode of the calendar: at 3,9; 6,12 o'clock each with a separate small seconds display the date, the week, the month and the moon phase. By 1925, Patek Philippe was destroyed (built) by the 1898 watch for women (97975) with its first perpetual calendar, with date, day of the week, month and moon phases available and all the pointers There are instantaneous jump agencies. Two years later it was sold successfully, shocking watchmaking in one fell swoop. In 1941, PP made great efforts to come up with the world's first batch-produced perpetual calendar watch PP1526, which was sold at a Christie's auction house on November 16, 2009 at a premium of US $ 2,773,721 (about 18,689,332 yuan). Our country was not born until 2007, the first calendar watch, or the Tianjin seagull to commemorate the 10th anniversary of the return of Hong Kong models. Basic adjustment: Speaking of the working principle of the perpetual calendar will certainly involve the calculation of the leap year, the initial watch on the simple calendar (Quantieme Simple), 31 days forever, 30 days of the month said, the real headache in February, 28,29 Jump back and forth, many people will choose to simply and crudely transferred to the next month on the 1st. It is much more convenient to have a Quantieme Annuel, which can distinguish between size and month. February is usually based on 28 days and only needs to be adjusted on February 29 of the leap year. (The picture shows the plot eighth day storage hollow watch) The calendar to identify the current month, year and this year is a leap year, can be automatically embedded in the leap year in February 29th day. So long as it is properly maintained and maintained in good condition, it can be calibrated only at the end of February every 100 years of non-leap years (eg 2100), and the top-level perpetual calendar can achieve the accuracy of the previous 400 years. Electronic watches and quartz watch is very easy to do to remove manpower, the former system will automatically trigger the timer according to the written procedures to correct the leap year. The latter adds an electronic timing chip to the movement, which can be controlled by the signal form of the calendar function. (The picture shows Citroen Campanola calendar) The mechanical watch to achieve the absolute precision is still a problem for now, the perpetual calendar movement can be done naturally will be able to do four years as a leap year, but the human calendar is obviously more complicated and more flexible, and made these time is not too large Regularity at all. Every 4 years an intercalary (year), every 100 years less an intercalary, more than 400 years intercalary, 3300 years after another intercalary ... ... one more every one thousand years, more than two days ... ... Want to convert the children's shoes, Earth revolution The exact time of the week is 365 days, 5 hours, 48 ​​minutes and 46 seconds. Please do it manually. Otherwise, the leading watchmaking industry Patek Philippe classmate has long been solved. Fortunately, after a leap year, N will not be re-adjusted for many years, not to mention many people are not so lucky enough to catch up with leap years, which can be understood as: African hand black (no racial discrimination). Operating principle: Perpetual calendar movement can be broadly divided into two parts, one part is responsible for a simple time, minutes and seconds, while the other part is based on a miniature 48 month gear as the base operation, the entire cycle rotation period of 4 years. The number of teeth refers to the 4-year = 48-month design, which measures the number of days in the current month so that the current date and month can be displayed relatively accurately. The 48th gear can reflect the different days of the month with different degrees of depression. The calendar displays the relatively accurate date and month according to the respective values ​​of the control gear for the gear. The second part of the movement, known as leap year calculation, relies on a separate set of wheel train components implemented in a perpetual calendar function that, in theory, can fit into many different movements, and modern perpetual calendar watches have been based on the 48th gear The rationale is that once every 400 years, the accuracy is even higher. How to maintain: Many people have not escaped the clutches of the beautiful calendar, one after another in the trick, start slightly forget the moment when the chain triggered the explosion. Calendar permutations and combinations of mechanical structure is very complicated. Traditional models are generally calibrated using a variety of calibration buttons, and most require the use of specialized tools or even repair. More simple operation there, pull out the crown in different stalls to adjust different functions. So in this proposal, either on the watch on the timing of the chain, but it can not be too much, how much will wear durability value; or buy a self-winding case does not wear on the collection, can buy a calendar watch children's shoes must not Really buy a box of economic strength. This article is reprinted from the watch era, if you have any questions, please send an email to wbsj@wbiao.cn to contact us.