Patek Philippe is considered the father of the perpetual calendar wristwatch - a grand complication providing the wearer with readings of the time, day, date, month and leap year. Unlike a simple calendar watch that needs to be adjusted five times a year to account for those non-conformist months with 30 days, plus February’s 28 or 29 days, a perpetual calendar automatically keeps track of these variations and only needs to be tweaked once a century, i.e. in 2100 and 2200. This elegant rose gold perpetual calendar watch comes in a 39.5mm case and is extremely easy and intuitive to read. Three apertures at 9, 12 and 3 o’clock give you the day, leap year and month, while the date is read off with a red-tipped retrograde hand in the centre of the dial, and a lovely Moon phase indicator embellishes the opaline dial. Powered by Patek’s mechanical automatic movement - calibre 324 QR - these Patek Philippe watches have all the makings of a family heirloom.