A. Lange & Sohne Style No: 136.029A. Lange & Söhne Lange 1 Time Zone Watch - 41.9mm White Gold Case - Black Dial - Black Strap
41.9 mm white gold case, 10.9 mm thick, black solid silver dial, calibre L141.1 manual winding movement with timezone, approximately 72 hours of power reserve, black strap.