The F.P. Journe F.P.Journe SouveraineChronometre Souverain 42mm (Ref. CS) is a Platinum-cased luxury mechanical wristwatch. The case measures 40 mm. The dial is Silver. Powered by a Manual winding movement. On the secondary market, the F.P.Journe SouveraineChronometre Souverain 42mm averages $184,557 (range: $180,000–$189,113) across 2 active listings. 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.