limited to 263 pieces in total in the following metals: pink gold (145), white gold (90), yellow gold (27) and steel. Notably, it was the first 1815 model that included a jumping seconds hand, a complication first devised by the founder himself. In 2013, Lange introduced the Grand Complication, which boasts multifarious complications including a chiming mechanism with grand and small strike (grande et petite sonnerie), a minute repeater, a split-seconds chronograph with minute counter, and a perpetual calendar with moon phase and flying seconds (seconde foudroyante). Upon release, the piece was the most complicated wristwatch ever made in Germany. The retail price for the watch was million, and only six pieces have been produced. It took about a year for a master watchmaker to assemble the mechanism. 1815 In general, Lange 1815 is a family of wristwatches that pays a tribute to the legacy of Ferdinand Adolph Lange, who was born in the year 1815 and founded the company in 1845. The Lange 1815 family consists of watch models with complications such as chronograph, annual calendar, tourbillon, perpetual calendar and so on. The watches in this line take their roots from Lange pocket watches to the present time by using traditional elements like railway minute track, Arabic numerals and clubs-shaped markers on the 15-minute intervals. Additionally, a couple notable models of the Lange 1815 include the "1815 'Homage to Walter Lange,'" limited in production to just 263 time pieces, and the "1815 Rattrapante Perpetual Calendar in Platinum," winner of the Grande Complication Prize and the Public Prize at the Grand Prix d'Horlogerie de Geneve. Zeitwerk Introduced in 2009, the Zeitwerk is the first mechanical watch that displays the time from left to right in a digital looking manner. Its designers had challenged everything, except mechanical principles, to come up with a patented mechanism that drove three precisely switching hour and minute discs. In November 2009, it was awarded the “Aigulle d’Or” at the Grand Prix d’Horlogerie de Genève. Encouraged by the success, the watch was turned into a family of its own. The Zeitwerk range includes several watches with striking complications as well as a model featuring a ring-shaped date display. Lange 1 The Lange 1 is one of the first watch models introduced after A. Lange & Söhne trademark was re-established in 1990s. It is a family of watches that boasts a unique decentralized and asymmetrical dial design,