According to the Gregorian calendar, every four years is a leap year, that is, an additional day. February 29, 2020 is such a special date. Since 2001, Lange has launched eight watches with leap year displays. Moreover, the Lange watch factory from Saxony has developed a unique perpetual calendar mechanical technology.
The highlight of this watch is its patented external moon ring, which realizes a new way of displaying the month. It replaces the traditional mechanism of gear advancement. This innovative technology brings new challenges to movement designers. The designer must think about how to make the large display ring rotate 30 degrees on the last day of each month. This increase is four times larger than that of a small and light program wheel. To this end, the designer finds another way to advance the monthly ring and seeks new solutions for the monthly length sampling process.
The moon ring is driven by internal gears and rotates around the mandrel once a year. The ring gear is provided with a wavy groove with a peripheral notch. The spring-loaded sampling lever slides along the gap, and the magnitude of the deviation corresponds to the depth of the groove. The larger the deviation, the shorter the month. In February, the extension of the sampling lever contacted the cam at the bottom of the leap year disc. This allowed the device to identify that the year was 365 days in total, or a leap year, or 29 days in February. Find best discount replica Tag Heuer Aquaracer 500M, super clone watches at Watchesbuyoff.to.
The highlight of this watch is its patented external moon ring, which realizes a new way of displaying the month. It replaces the traditional mechanism of gear advancement. This innovative technology brings new challenges to movement designers. The designer must think about how to make the large display ring rotate 30 degrees on the last day of each month. This increase is four times larger than that of a small and light program wheel. To this end, the designer finds another way to advance the monthly ring and seeks new solutions for the monthly length sampling process.
The moon ring is driven by internal gears and rotates around the mandrel once a year. The ring gear is provided with a wavy groove with a peripheral notch. The spring-loaded sampling lever slides along the gap, and the magnitude of the deviation corresponds to the depth of the groove. The larger the deviation, the shorter the month. In February, the extension of the sampling lever contacted the cam at the bottom of the leap year disc. This allowed the device to identify that the year was 365 days in total, or a leap year, or 29 days in February. Find best discount replica Tag Heuer Aquaracer 500M, super clone watches at Watchesbuyoff.to.
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