A. Lange & Söhne Tourbograph Perpetual Homage to F. A. Lange

About this reference

The A. Lange & Söhne Tourbograph Perpetual "Homage to F. A. Lange" reference 706.050 was released in 2020 as a limited edition of 50 pieces to mark the 175th anniversary of Saxon precision watchmaking. This reference features a 43mm case constructed from 18k Honeygold, a proprietary alloy harder than standard gold, paired with a black-rhodiumed Honeygold dial featuring raised numerals and scales. It houses the manual-wind caliber L133.1, a movement comprising 684 parts that integrates five complications: a fusée-and-chain transmission, a tourbillon, a split-seconds chronograph, a perpetual calendar, and a moon phase. Collectors value this reference for its technical density and its position as the final evolution of the Tourbograph lineage. On the secondary market, this model typically commands prices in the mid-to-high six-figure range, often between $500,000 and $800,000. A notable auction result occurred in 2021 when an example sold for approximately $850,000.