IWC IW502218 Portuguese Perpetual Calendar II 18K White Gold (31983)

31983 IWC 5022 Portuguese Perpetual Calendar II, IW502218, 5022-18, 502218, 18K white gold on a strap with an 18K white gold deployment buckle, automatic movement, slate grey dial with white gold hands & white gold applied Arabic numeral hour markers, perpetual calendar, date, month, moonphase, year, 7 day power reserve indicator, offset seconds hand, display back, sapphire crystal, size: 42.3 mm, thickness:15.6 mm, water resistant to 30 meters, Like New with Box, Additional Disc for Year Idicator, and Papers; dated June 2008.

$18,900

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More about IWC IW502218 Portuguese Perpetual Calendar II 18K White Gold

This is an 18K white gold IWC Portuguese Perpetual Calendar II, IW502218. It has a leather strap with a matching 18K white gold deployment buckle, and a scratch resistant anti-reflective sapphire crystal. The 42.3mm diameter solid thee-body case, stepped concave bezel, downturned lugs, and screwed-down transparent sapphire display case back are polished. The dial is a shiny slate grey with applied white gold Arabic numeral hour markers and square indexes, and there is an outer track with minute divisions and rose gold feuille hands. The perpetual calendar has a moon phase subsidiary dial at the 12 o'clock position, a month indicator dial at 6 o'clock, a combination day and constant seconds dial at 9 o'clock, and a totalized date and 7-day power reserve indicator at 3 o'clock. A four-digit date aperture is between 7 and 8 o'clock. It's water resistant to 30 meters/100 feet, and the 15.6mm thick case, dial, and movement are all signed.

The automatic self-winding IWC caliber 51610 movement is rhodium-plated, with fausses cotes embellishment. It's constructed with 64 jewels, a shock absorber mechanism, and a straight-line lever escapement. It includes a monometallic balance that's adjusted to 5 positions, a self-compensating Breguet balance spring, and a micrometer regulator. It has the patented Pellaton winding mechanism with a skeletonized rotor with a gold medallion inlay engraved "IWC - Probus Scafusia."

IWC's official motto, established in 1903, is "Probus Scafusia", meaning "good, solid craftsmanship from Schaffhausen."