Patek Philippe Annual Calendar Moonphase toys taking design cues from the

taking design cues from the Rolex Submariner but housing an ETA automatic movement (instead of a Rolex Calibre) in the Oyster case

the same diameter as a vintage Submariner or GMT-Master

Few watch brands can compete with Girard-Perregaux in the history department

and Rolex

Patek Philippe Annual Calendar Moonphase toys taking design cues from theIn 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