Patek Philippe Annual Calendar Moonphase Tray as pressure from the new

as pressure from the new ‘luxury sport watch’ category introduced in the early 1970s forced the storied maison to evolve

it features a domed acrylic crystal and a twin-crown configuration — the 2 o’clock crown controls the alarm function

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Patek Philippe Annual Calendar Moonphase Tray as pressure from the newIn 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 Philippe in collaboration with the bright engineering minds at the GSE. Five years later, Patek debuted the Reference 5035 which marked the worlds