A. Lange & Sohne Style No: 730.079FA. Lange & Söhne 1815 Tourbillon Watch - 39.5mm Platinum Case - White Dial - Dark-Brown Strap
39.5 mm platinum case, 11.3 mm thick, enamelled white copper dial, calibre L102.1 manual winding movement with tourbillon, approximately 72 hours of power reserve, dark-brown strap.