Powering the watch is the HMC 810 movement, which is seen in the Endeavor Tourbillon, however, the movement is inverted in this case because the tourbillon is displayed at the 12 0’clock position instead of 6 o’clock, hence the destro crown.
Additional changes were made to allow the hands to display on the disc above the dial. The carriage of the tourbillon is propped up vertically to display the hairspring. On the back, the movement looks exactly like the ones seen with the perlage and beveled edges, since all the changes are made on the dial side.