Patek Philippe Annual Calendar Dirty Dozen and luxury materials

and luxury materials

quadrant Arabic indices

black bezels

‘Dirty Dozen’ watch of 1945

the seventeen-jewel ETA automatic movement clips along

Patek Philippe Annual Calendar Dirty Dozen and luxury materialsIn 1991, the soon to be graduates at the Geneva School of Engineering were presented with their final project prior to receiving their diploma simplify the perpetual calendar. Although the task was easier said than done, their work led to the inception of the annual calendar complication, patented by Patek in collaboration with the bright engineering minds at the GSE. Five years later, Patek debuted the Reference 5035 which marked the worlds first