The Patek Philippe 5236P-001 In-line Perpetual Calendar introduces a groundbreaking design with its in-line display of day, date, and month, a first for Patek Philippe in a wristwatch. Housed in a 41.3mm platinum case, it features a blue gradient dial with vertical satin finish and a moon-phase indicator. Powered by the self-winding Caliber 31-260 PS QL movement, it offers a power reserve of 38 to 48 hours. The watch is presented on a navy blue alligator leather strap with a platinum fold-over clasp.