Patek Philippe Annual Calendar Vegan Leather The JLC Deep Sea Alarm

The JLC Deep Sea Alarm is one

while its winding and time-setting via the crown provided an industry standard

a Reference 178288

It’s simply a stupidly fun watch

dates to circa 1986 and features an 18k yellow gold case

Patek Philippe Annual Calendar Vegan Leather The JLC Deep Sea AlarmIn 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, the worlds first ever annual