Patek Philippe Annual Calendar BV The modified Soprod P054 manual

The modified Soprod P054 manual winding movement powers both timekeeping and the animation via the same winding motion

the Submersible range utilizes durable materials and offers enhanced water resistance

A unidirectional titanium bezel with polished riders and sunray brushed markings ensures optimal grip and precision

asymmetrical case with a black nylon fabric strap

while the stainless-steel bracelet ensures durability and style both in and out of the water

Patek Philippe Annual Calendar BV The modified Soprod P054 manualIn 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 atthe GSE. Five years later, Patek debuted the Reference 5035 which marked the worlds first ever