Portofino Perpetual CalendarIW344602Portofino Collection
18ct 5N Gold – Automatic – 40mm
The Portofino Perpetual Calendar features the legendary perpetual calendar developed by Kurt Klaus during the 1980s.
AUD / Including GST
Detailed features & specifications
At 40 millimetres, the Portofino Perpetual Calendar is the smallest perpetual calendar in IWC’s portfolio. This version features an 18-carat 5N gold case, a silver-plated dial, and gold-plated hands and appliques.
IWC’s legendary perpetual calendar was originally engineered during the 1980s by the brand’s former head-watchmaker, Kurt Klaus. The ingenious mechanism is mechanically programmed to recognize the different lengths of the months as well as the leap years. It will run without any adjustments until the year 2100. The calendar information is displayed in three subdials at 3, 6, and 9 o’clock. Made of solid gold, the moon phase disc shows the moon against the backdrop of a star-studded night sky. Thanks to a special reduction gear train, it is so precise that it will only deviate by one day from the orbit of Earth’s satellite after 577.5 years.
Through the transparent sapphire glass back, one can catch a glimpse of the IWC-manufactured 82650 calibre. Engineered with a focus on robustness and precision, this high-end automatic movement features IWC’s Pellaton winding system, which has been reinforced with ceramic components and builds up a power reserve of 60 hours. This exclusive timepiece is fitted with a blue calfskin strap with a pin buckle.
Case – 18 ct 5N gold case
Strap – Blue calfskin strap
Diameter – 40.0 mm
Height – 12.7 mm
Water resistance – 5 bar
Movement – 82650 Calibre IWC-manufactured movement
Power Reserve – 60 hours
Features – Perpetual calendar with displays for the date, day, month, leap year and perpetual moon phase, Sapphire glass, convex, antireflective coating on both sides, Pellaton automatic winding, Central hacking seconds