The perpetual calendar ranks among the classic complications in IWC’s Portugieser family. In the anniversary year, the manufacture presents it in a special interpretation. The Portugieser Perpetual Calendar Edition “150 Years” is available in a limited edition of 250 watches, featuring an 18-carat 5N gold case, a white dial with a lacquered finish, and blued hands. The IWC-manufactured 52616 calibre has an automatic Pellaton winding system; with its solid gold rotor and two barrels, it builds up a power reserve of 7 days. The perpetual calendar automatically recognises the different month lengths and the leap years, and needs no manual adjustment until 2100. The double moon phase display shows the moon phase for the northern and southern hemisphere, and will deviate from the actual course of the moon by just one day every 577.5 years.
18 ct 5N gold case Diameter 44.2 mm Height 14.9 mm See-through sapphire glass back Water resistance 3 bar
52615 Calibre IWC-manufactured movement Automatic, self-winding 168 hours Power Reserve Frequency 28800.0 vph (4.0 hz) 386 Components 54 Jewels Côtes de Genève, perlage
Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase for the northern and southern hemisphere 7 days power reserve Power reserve display Sapphire glass, arched-edge, antireflective coating on both sides Pellaton automatic winding Rotor in 18-carat 5N gold Small hacking seconds Limited to 250 pieces
Black alligator leather strap by Santoni Strap width 22 mm