The BlancpainLéman Tourbillon reference 2926A-5222-55B has a white gold case set with a total of 579 diamonds on the bezel, case band, lugs and case back (!). The crown is set with a rose-cut diamond; the dial is paved with 164 diamonds; and the clasp is set with 16 diamond. The total diamond weight is 20.14 carat. At the heart of this all is caliber 25A, which lost its power reserve indicator in the process.
