An important and extremely rare Glashuette wristwatch in near mint condition, regulator dial with pivoting dial segment and visible tourbillon - with original box, operating instructions, Lange-booklet and Lange-guarantee seal dated December 6, 2011 Case: 18k pink gold, sapphire glass screwed on back, "Lange" 18k pink gold deployant clasp. Dial: solid silver, argenté, window for tourbillon cage. The three-part regulator dial of the RICHARD LANGE TOURBILLON Pour le Mérite was inspired by a precision chronometer crafted by Dresden master watchmaker Johann Heinrich Seyffert. An inimitable feature of this timepiece is the aperture in the subsidiary-seconds dial through which the tourbillon can be observed. An aperture in the subsidiary seconds dial exposes the steadily rotating tourbillon. To assure the unambiguous readability of the hour, a segment of the hour dial bearing the numerals VIII, IX and X flips into view at precisely 6 o'clock. It retracts again at 12 o'clock, when the pivoting dial segment is no longer needed. The patented stop-seconds mechanism can also be observed in the dial aperture. When the crown is pulled, a V-shaped arresting spring instantly stops the tourbillon. Developed by A. Lange & Söhne, this mechanism makes it possible for the very first time to block a tourbillon in any cage orientation and regardless of the angular position of the balance. This allows the time to be set to one-second accuracy. The RICHARD LANGE TOURBILLON Pour le Mérite was launched in 2011. Source: www.alange-soehne.com.
Case: very good. Dial: as new. Movm.: as new, capable of running, cleaning recommended.

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