One-off piece in platinum. With the ATUM Backpage Platinum, the watchmakers from Grossmann have shifted the beauty of the High Artistic Finish movement to the dial side. Thus the mirrored calibre 107.0 can be admired even when reading the time. An unusually large dial cut-out allows the characteristic movement details such as Grossmann’s balance wheel, hand-engraved balance cock and the three-band snailing on the ratchet wheel to be seen on the wrist. Wide Glashütte stripes are applied to the front and back of the plates. Both the hands as well as all the screws are in blue. The fully circulating minute scale serves as the frame for the moving game of time. Calibre 107.0 in High Artistic Finish. Engraving 1 / 1.