The Handwerkskunst has a dial and movement that are elaborately engraved using the free hand technique. The dial is made of solid white gold and decorated with a combination of tremblage and relief engraving techniques. The blue numerals of the date display are hand painted. It combines two complications: a tourbillon and a perpetual calendar, and contains the Lange manufacture self-winding caliber L082.1, decorated and assembled by hand.
A. Lange & Söhne