it's sourced from Fréderique Piguet.Lot 28 represents the last execution of screw-back Autavia, and with it Heuer introduces a new complication the three-register chronograph with a GMT indication. Of course with the alchemists they wanted to find the material that gives you eternal life. Journe's love of astronomical complications goes back even further than the 1987 pocket watch one of his earliest projects, at the age of 22, was to create a planetarium mechanism for Asprey in London, which was completed in 197The planetarium is regulated by a pendulum, and shows the movements of Mercury, Venus, the Earth around the Sun, as well as the orbit of the Moon around the Earth.