SIHH 2014 Preview - Piaget Altiplano 900P
Piaget, the leader of ultra-thin wristwatches, has done it again. With the creation of the Altiplano 900P 38mm, they have broken the record for the world’s thinnest watch. Paying homage to the brand’s historic ultra-thin 9P caliber, the 900P is in many ways as important today, as the 9P was back in 1957.
Unlike virtually all other ultra-thin timepieces, the key to the record breaking thinness (3.65 mm) is not what you might expect. It is not the result of paring an ultra-thin caliber with an ultra-thin case. Instead, it was achieved by combining the case and the movement. Quite simply, the caseback acts as the mainplate (as you can see in the diagram below).