Only true masters of the art of watchmaking can take the craft to minimalist extremes. This year, Piaget, a specialist in ultrathin watchmaking since it introduced the 2.0-mm-thick 9P manual movement in 1957, continues to square off with Bulgari, a newcomer to the genre.
Piaget marked the 60th anniversary of its elegant Altiplano collection with the Ultimate Automatic 910P ($27,300 in rose gold and $28,400 in white gold), measuring only 4.3 mm thick. The automatic watch builds off the manual-winding 900P from 2014, similarly condensing space by utilizing the case as a base plate. Other tweaks were made to the movement architecture to further reduce the height of the exposed movement.
The brand further flexed its ultra-thin muscles with a concept piece, the Altiplano Ultimate Concept, which, at 2 mm,…
