It seems to be Benjamin Buttons Goldwatch: The 1985 / 1986-Piaget Eureka! The 1985-presented successor of the Polo -- same link-system just with every link in the same size of 6mm and not alternating every 2nd shortened to 3mm, like the Polo -- looks better than ever after almost 40y.

Left the watch from 1985 in the Piaget coffeetable-book and on the right the 1986-made example in reality.