Patek Philippe 5396 Annual Calendar Moonphase Replica Watch Hands-On Patek Phillippe by wholesalewatches - October 4, 2016October 6, 20160 There is something intrinsically ornate about annual calendars like the Patek Philippe 5396. While a QP (quantième perpetuel, French for perpetual calendar) is arguably the ultimate date complication, the annual calendar can be executed in a more aesthetically pure fashion, unencumbered by the need to display that pesky year indicator.