IWC Schaffhausen - Portofino

Portofino Perpetual Calendar

18 ct 5N gold case, 40mm. Model IW344602
Editor's notes

The Portofino Perpetual Calendar features the legendary perpetual calendar developed by Kurt Klaus during the 1980s. 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.

AU$49,500

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Technical Specifications

Movement

82650 Calibre

IWC-manufactured movement

Automatic, self-winding

60 hours Power Reserve

Frequency 28'800 VPH (4 Hz)

326 Components

46 Jewels

Côtes de Genève, perlage

Strap

Blue calfskin strap

Strap width: 20mm

Features

Perpetual calendar with displays for the date, day, month, leap year and perpetual moon phase

Sapphire glass, arched-edge, antireflective coating on both sides

Pellaton automatic winding

Central hacking seconds

Case

18 ct 5N gold case

Diameter 40.0 mm

Height 12.7 mm

See-through sapphire glass back

Water resistance 5 bar

IWC IW344602 Category6
IWC IW344602 Category6 IWC IW344602 Category6

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