A. Lange & Söhne 1815 Up/Down

About this reference

The A. Lange & Söhne 1815 Up/Down reference 221.025 in platinum was produced between approximately 1997 and 2008. Collectors prioritize this reference for its 35.9mm case diameter, which adheres to traditional proportions compared to the larger modern iterations. It is powered by the manual-wind caliber L942.1, featuring a 45-hour power reserve indicated by the "AUF/AB" scale at 8 o'clock and a small seconds sub-dial at 4 o'clock. The solid silver dial utilizes Arabic numerals and blued steel hands, housed in a three-part platinum case with a sapphire crystal caseback. On the secondary market, this reference typically trades between $25,000 and $35,000 depending on the presence of original documentation. A notable production detail is the movement’s finishing, which includes a hand-engraved balance cock and screw-mounted gold chatons. While the yellow and rose gold variants are more common, the platinum reference 221.025 remains the most sought-after metal for this discontinued series.