Introducing: Patek Philippe Launches The First Cubitus Perpetual Calendar

On the front, the slats give a peek of the skeletonized and shaped caliber 28-28 Q SQU inside. While all previous Cubitus models featured a round movement (a move deemed controversial by many), this first shaped Cubitus caliber is not a new movement entirely; it’s an evolution of the classic caliber 240 Q, most notably used in the 5140G and 5740 Nautilus Perpetual Calendar. It offers a power reserve of 48 hours, beats at 21,600 VpH, and features a Gyromax balance and a Spiromax balance spring. A few adaptations had to be made, of course. The bridges now conform to the silhouette of the Cubitus, and the dramatic ribbing (or lack thereof) is even more evident through the sapphire caseback. The mechanisms connecting the recessed correctors on the side of the case to the caliber had to be adjusted to account for the new positions on the square case, and of course, the moonphase mechanism has been updated as well.