CORUM TOURBILLON ‘LA MYSTERIEUSE’ PLATINUM Corum, Tourbillon "La Mystérieuse", No. 6. Made by Christophe Claret exclusively for Corum in a very few examples in the 1990's. Very fine rare and unusual, platinum and yellow sapphire-set "Mystery" wristwatch with a special crystal plate, visible one-minute tourbillon regulator movement and a platinum Corum deployant clasp. Accompanied by the original Corum fitted box. Transparent. White gold baton hands. Cal. CLA 97 with the movement plates and bridges entirely made from sapphire crystal, 9 jewels, lateral lever escapement with visible one-minute tourbillon regulator with polished steel cage, monometallic balance, self-compensating fl at balance spring. Movement signed "C. Claret" and "Corum", case numbered "No. 6" to the band. Diam. 36 mm. Thickness 9 mm.