This Patek Philippe 52360P has three patented new 31-260 PS QL automatic ultra-thin movements. As the foundation, the player uses ultra-thin structural calendar regulator movement 31-260 REG QA (reference number 5235). In order to ensure maximum readability and optimal accuracy, complete micromechanical development work is required. For a complete date display system, use four disks aligned on the same plane - a disk for one day, two disks for the date, one disk for month. A device that adds 118 components. The foreye calendar mechanism is fixed to a particular deck in an additional module. The connection to the movement should be attributed to the plug-in on the division.