The Blancpain Léman Tourbillon2189-3430-63B (Ref. 2189-3430-63B) is a luxury mechanical wristwatch. Powered by a Automatic movement. On the secondary market, the Léman Tourbillon2189-3430-63B averages $45,400 across 1 active listing. When buying pre-owned, check condition grade, box and papers (typically a 10–20% premium), service history, and originality of dial and hands. Use the listings and price history on this page to benchmark fair market value.