Patek Philippe Annual Calendar diamonds such as the famous Calibre

such as the famous Calibre 30T2

Surrounding the dial is an oversized sapphire dive-timing bezel which is locked in place unless the orange button located on the top left corner of the case is depressed

so we've included a brand-new TROPIC® rubber diving strap and are also including its signed steel deployant clasp

and 9" quadrant indices - only available on the earliest examples - with a correct matching handset

and an extremely attractive satin black dial with "rainbow" luminous indices and a matching handset

Patek Philippe Annual Calendar diamonds such as the famous CalibreIn 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