La Cote des Montres : Enchères Franck Muller, "Cintrée Curvex, Imperial Tourbillon", N°6, Ref. 2852 T. Produced in the 1990s. Very fine and very rare, tonneau-shaped and curved, platinum gentleman's wristwatch with
Franck Muller, Tourbillon Imperial Répétition Minutes Cintré Curvex Collection 5850 RM T PT de Franck Muller - Chronopassion
Franck Muller Unveils Cintrée Curvex Central Tourbillon | SJX Watches