The St.Petersburg Centre of Watch & Clock Restoration

Easter clock has been decorated with elements of gold, hands of clock have been enchased with diamonds. The sides have been decorated with images of archangels Michael and Gabriel being worked out in style of unique relief mosaic.

The construction of the device is the patented innovation of famous Saint-Petersburg clock master Konstantin Chaikin. The device is supplied with the unique Orthodox Easter's date indicator - which is nowadays the most complicated function of pointer indication in the world.

Formulas of higher mathematics that were used for counting inner clock organization have provided mechanism of this unique clock with the highest range of complexity. Construction of only mechanical Easter indicator has got no analogues worldwide neither in method of calculation nor in principle of work. Moreover it drastically exceeds structure of a minute repeater. It contains few programmed differential gears and over 200 hand-made details.

Beside, the perpetual Orthodox Easter’s date indicator the clock has been equipped with:

- function of time equation;

- Saint-Petersburg celestial map;

- Turbillon;

- «autonomie de marche»indicator;

- perpetual calendar (indicator of today's date, weekday, month, season and year);

- Moon phase indicator.