The Konstantin Chaykin Manufacture, known to lovers of fine watches all over the world for watches containing unusual movements and functions and clocks for fine interiors with gorgeous cases made of precious and rare materials. For Konstantin Chaykin, the Russian inventor and watchmaker, religion, in all forms is one of his passions, particularly the different calendars and symbolism. Konstantin is always looking for new ways to connect religious meanings with telling time.
Konstantin does not favor any one religion. You will find clocks and watches he has invented with Christian, Hebrew and Muslim symbols and calendars. Creating instruments to tell time has been connected to religion from the start. The first mechanical clocks for instance often had blank faces and were located on towers so that people would know when services would be. Despite the fact that today clocks and watches are part of everyday, secular life, combining the jigsaw pieces of calculating the dates of the Eastern Orthodox Easter with the regular workings of a clock movement is mesmerizing.
Konstantin’s latest masterpiece is tied to the Russian Orthodox Calendar. This clock identifies the moving date of Eastern Orthodox Easter, a date that is calculated based on numerous rules and limitations. To fully appreciate the complexity of this movement, one needs to try and calculate the date of Easter oneself: with all the will in the world, it is hard to succeed the first time. The factors include: lunar cycles, solar cycles, the indict, the epact, the solar correction and more. Konstantin Chaykin learned how to use all of these factors created his own method for doing the computations and ‘taught’ his clock how to compute the dates for Eastern Orthodox Easter.
The movements and the appearance of the Computus Clock are equally complicated and beautiful. Anyone who has even seen photographs of St. Petersburg will recognize the references to the St. Isaac Cathedral in the overall shape, the dome, the colonnade, the lantern, the gables, the bell towers and the colors. The colors of the marble on the Computus Clock case match the colors used inside the Cathedral.
The facades of St. Isaac’s are decorated with gables upheld by monumental granite columns embodying eternity. Once again, the Computus Clock includes these themes: eternity in the eternal calendar with the eternal cycle of Easter and visually in columns which frame the movement. There are less columns on the clock than on the Cathedral for the columns on the clock reveal glimpses of the secrets of time. The gables of the Cathedral resemble eagles with outspread wings. Four of the gables are decorated with energetic, yet massive bas-reliefs. The Computus Clock includes details from the north gable – ‘The Resurrection’ and from the south gable ‘The Visit of the Magi’. Expert stoneworkers lovingly reproduced these details in mosaics. The case also includes some imagery and themes from the Cathedral’s interior: the designs on the roof mimic the floor of the Cathedral and the mosaics on the sides of the case are based on the stained glass window ‘The Risen Christ’ and the mosaic of Archangel Michael.
The indicator of Eastern Easter is located on the face of the Computus Clock. This indicator includes the date according to both the Julian and the Gregorian calendars. There is a separate row of dates for each calendar. The lower row is for the Gregorian calendar and includes dates from April 4 to May 8, while the top row is for the Julian calendar and ranges from March 22 through April 25. To make it easier to read the dates, they are color-coded by month. Instead of a hand, there is a square frame which contains the dates for the given year from both calendars. The dates change every year on New Year.
On the back of the movement there is a mechanism to balance the discrepancies between ‘real’ time and the 24 hour day; a discrepancy created by the imperfect shape of Earth’s orbit and the 23° angle of the Earth’s axis.
Manufactory caliber: Т03-0
Materials: brass, steel, bronze, anodized aluminum, gold, lapis lazuli and sapphires
Frequency: 18 000 vibrations per hour
Movement parts: 1375
Power reserve: up to 10 days
Movement accuracy: ± 20 seconds per day
Dimensions: 600*340*242 mm
Materials: marble, brass, silver, steel, duralumin, mineral glass, gold, flint, rhodonite, violan, xonotlite, lapis lazuli, charoite
Additional technology: guilloche, hot enamel on guilloche surface, mosaic
The minerals in the mosaics:
Gables: flint, rhodonite, violan, sandstone, xonotlite, lapis lazuli, charoite
Mosaic with the image of Archangel Michael: jasper, violan, sandstone, magnesite, jade
Mosaic with the image of “the Risen Christ”: jasper, marble, jade, lapis lazuli, violan
Top of the housing mosaic: marble, flint
Date of Orthodox Easter
Equation of time
Russia time zones
The functions of the perpetual calendar:
Day of week
№ 2353978: “Calendar device and method for orthodox Easter date determination”
№ 2306618: “Calendar device for determining orthodox Easter date and orthodox holy days”
№149239 “Clock with display of time in time zones of Russia (options) and method of simultaneous display of time in all time zones of Russia”
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