Audemars Piguet

European Watch Clock and Jewellery Fair 1986 BF 204
A world first : this selfwinding wristwatch’s movement incorporates a tourbillon, the most ingenious and one of the most complex horological mechanisms ever invented. Furthermore, the movement is an extra-thin construction, only 2.50 mm thick and 7.20 mm across. Total watchcase thickness : 4.80 mm. The movement’s rotor is in platinum-iridium alloy. 18K yellow gold case. The tourbillon can be observed through an aperture in the gold dial. (AUDEMARS PIGUET)