A. Lange & Söhne Datograph Perpetual Tourbillon (2016)

Hidden tourbillon only viewable from the case back, also a perpetual calendar and a Chronograph. In-house calibre L952.2 manually wound, 729 parts, 18,000bph and a power reserve of 50 hours. Platinum PT950 case in 41.5mm. Limited to 100pieces. Priced at €295,000.00