According to the Journe Sep 2003 interview this movement was designed by him:
"FPJ: ...After I quit the St Croix company, I continued to develop creative mechanism like Grande Sonnerie and a new monopusher Chrono for Ulysse Nardin..."
"TP: Wasn't the Ulysse Nardin monopusher chrono done by Jaquet?
FPJ: It was from me. We are good friends and I gave Jaquet the right to the product. I was too busy to follow up on that project, so I just gave it away. Cartier Pasha big date, for example, is still under my patent."