The Decalogue Luah Shana Piece Unique watch is the fourth model in the Decalogue collection. With the Decalogue watch, the first model in the collection, Konstantin Chaykin emphasized the emotional perception of light at night; with the Decalogue Rega watch, the second model of the collection, he was fascinated by the traditional Jewish system of time measurement and its connection to astronomy, the most precise ancient science, while the Decalogue Luah Shana watch is dedicated to the most practical traditional lunar calendar, the oldest calendar system, while the Decalogue Luah Shana Piece Unique represents the traditional Jewish system of time measurement in a decorative way. 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 floral patterns and heraldic lions on 18k rose gold case are hand-engraved using a deep relief engraving technique with a finely hammered background. On the white gold dial, the recognizable contours of the columns, symbolizing the famous copper pillars of the First Temple or Solomon’s Temple, are finely decorated with engraved floral motifs. The central zone of the main sub-dial with hour and minute hands is also decorated with floral motifs, while the large moonphase sub-dial depicts the stone tablets of Moses in stylized form. Case dimensions: Diameter 42 mm The caliber K.01-0 of the Decalogue Luah Shana Piece Unique 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