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    The Lange 1815 Rattrapante Perpetual Calendar Watch Is Released, Hitting The 2013 Geneva Watch & Clock Fair

    1815 RATTRAPANTE PERPETUAL CALENDAR combines the fascinating technology of the double-tracing chronograph and the precise characteristics of the perpetual calendar. It will not need to be adjusted for one day until 2100.

     The eighth chronograph movement, developed by ourselves, once again reflects Lange’s skills in the field of precision watchmaking. At first glance, the dial layout is well-organized, and if you look closely, you will find many complex devices, including a double-track chronograph, perpetual calendar, moon phase display and power reserve indicator.

     Since DATOGRAPH was launched in 1999, the renowned Lange Manufacture has been innovating in the design of high-quality chronographs. To date, it has produced at least seven proprietary movements, including the landmark DOUBLE SPLIT and TOURBOGRAPH ‘Pour le Mérite’. As for this 1815 RATTRAPANTE PERPETUAL CALENDAR, you can tell from the beginning of the name that this watch is a continuation of this series of successful chronograph works. It has entered the chronograph and the so-called chase or double chase chronograph.
    Inheritance of the great tradition: 1815 RATTRAPANTE PERPETUAL CALENDAR, page 2 The button at 10 o’clock reveals complex features hidden under a clear look. Under the sapphire crystal caseback, the eye-catching device is one of the most charming elements in the movement. The two column wheels adopt traditional technology, which can stop the running time accurately when the time is stopped. The overlapping sweep-type chronograph hands and double tracking hand can measure all lap time in one minute. The integral dial and power reserve display are set at 12 o’clock. The longer blue-steel hands indicate the accumulated time of the chronograph second hand. The short gold hands placed on the inner ring let the watch owner know when to add power to the mainspring through the winding crown.

     The newly developed L101.1 movement contains 636 independent components, of which more than 100 are used for perpetual calendar devices. The perpetual calendar not only recognizes all days of the month in the almanac, but also displays all leap years before 2100. According to the Gregorian calendar, the year 2100 does not belong to a leap year, so the system must be adjusted quickly for one day, and the watch owner can easily correct it by simply pressing a button. In other centuries (hundred years), the adjustment method is unchanged, and the next year to be corrected is 2200 years. Two calendar displays are set at 9 and 3 o’clock respectively. The small dial on the left displays the date and day of the week, and the right displays the month and leap year. Under the small dial at 6 o’clock, a newly designed solid gold moon phase plate is fitted to accurately reflect the cycle of the lunar month, with only one day of error every 122 years.

    Summary: This is an ultra-complicated watch with a perpetual calendar and dual-chronograph with complex technology. A moon phase display at 6 o’clock and a power reserve display at 12 o’clock are not only a playful The watch is also an exquisite work of art. The fine movement of the movement can be seen from the sapphire crystal back.

    Geneva International Haute Horlogerie 2013: