A. Lange & Söhne (Ref. 238.026) presents the 1815 Annual Calendar, an exceptional haute horlogerie timepiece crafted in 18k white gold. Powered by the manual-winding Calibre L051.3 with a 72-hour power reserve, this watch features a beautifully balanced silver dial with classic Arabic numerals and an elegant annual calendar display. A masterpiece of German precision and craftsmanship, highly sought after by discerning collectors.