Coming in at a scant 4.3mm thick, Piaget’s new Altiplano Ultimate Automatic 910P — launched a month ahead of SIHH 2018 — is officially the thinnest automatic in the world today. It hugely outpaces the previous record holder, the Bulgari Octo Finissimo Ultra-Thin Automatique, launched just earlier this year, by 0.85mm. It’s a seemingly narrow margin but a massive difference in the super-niche world of ultra-thin watches.
Piaget was able to achieve this by integrating the movement’s baseplate into the case, rather than having the case encapsulate a separate movement like in a conventional watch (this is the same trick Piaget used to scale down the aforementioned 900P). The movement also utilizes a “peripheral” rotor that surrounds the movement in place of an offset micro-rotor (the standard in thin automatics), further cutting down on thickness. Piaget is offering the 910P with two case options: white and pink gold. They’ll cost $27,000 and $26,000, respectively when they go on sale.
Piaget’s history is filled with incredibly-slim watches. Its iconic 9P hand-winding movement was the thinnest in the world at 2.3mm thick when it launched way back in 1960, and the more-recent, hand-winding 900P had a short reign as the thinnest mechanical watch in the world (at 3.56mm thick, case included) in 2013. The 910P, then, is a big leap for both the watchmaker and the field of ultra-thin watches.