The decoration of the dial of the Decalogue Luah Shana watch shows the contours of columns symbolizing the famous copper pillars of the First Temple or Solomon’s Temple. A large moonphase sub-dial is decorated with a symbolic stylized image of the stone tablets of Moses. In order to equip the Decalogue Luah Shana watch with a calendar function, Konstantin Chaykin modified the caliber K.01-0, to which he added to the moonphase a date display according to the traditional Jewish lunar calendar. The dates are counted according to the assumed system of alternating 29- and 30-day months. There is something special about observing the watch being built. It is not just a mechanical process, but a true art in which the meticulous work of the master craftsman is combined with the precision of technical thinking. Assembling a watch is something that can fascinate, inspire and convey a sense of wonder. The caseback with the sapphire window of the Decalogue Luah Shana watch reveals the traditional hand-wound movement with the Star of David is engraved on the barrel wheel and decorated with blue enamel. The caliber K.01-0 of the Decalogue Luah Shana watch was developed by Konstantin Chaykin to indicate the time according to the traditions of Jewish timekeeping. The hour and minute hands rotate counterclockwise. The movement is made entirely in Konstantin Chaykin Manufacture according to the standards of haute horlogerie, using traditional techniques for finishing the components: Côtes de Genève, perlage, fine straight and circular grinding, hand-polished chamfers, engravings, polished screw, pin and jewel recesses, ball polishing of the pivots and rhodium plating. The special feature of the movement is a ‘Pac-Man’ regulator, developed by Konstantin Chaykin for fine adjustment of the hairspring. Caliber: K.01-0, hand-wound, made by Konstantin Chaykin Manufacture Power reserve: 48 hours Functions: – Hour and minute hands rotating counterclockwise; – Moonphase display with date display according to traditional Jewish calendar The hour markings on the dial are represented in letters of the Hebrew alphabet, and according to the Kabbalah, each of these letters has a numerical value, the gematria, which corresponds to the numbers from 1 to 12.