IWC IW502308 Portuguese Perpetual Calendar SS BOUTIQUE Limited (33251)

33251 IWC 5023 Portuguese Perpetual Calendar II, IW502308, 5023-08, 502308, limited edition to 500 pieces and sold at Boutiques only, stainless steel with a stainless steel deployant buckle, automatic IWC caliber 51613 movement, perpetual calendar, 4 digit year, 7 day power reserve, silver dial, applied Arabic numerals, sapphire crystal, display back, water resistant, size 44.2 mm, thickness: 15.5 mm, like new with the original box and open papers.

$19,900

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More about IWC IW502308 Portuguese Perpetual Calendar SS BOUTIQUE Limited

This is stainless steel IWC Portuguese Perpetual Calendar II IW502308. It has an alligator leather strap with a stainless steel deployant buckle, and a scratch resistant sapphire crystal. The 44mm diameter three-body case, downturned lugs, and angled stepped bezel are polished/brushed, and it has a transparent sapphire crystal display case back secured with 6 screws. The dial is silver with applied oxidized white gold Arabic numeral hour markers, and an outer railway-style track with minute marker divisions. The moon phase aperture is at 12 o'clock, and the four-digit year window is between 7 and 8 o'clock. The moon phase indicator is at 12 o'clock, and a sub dial with the days of the week and a combined running constant seconds indicator are at 3. It has a 7-day power reserve, and it's water resistant to 30 meters/100 feet. The 15.5mm thick case, dial, and movement are all signed.

This IWC Portuguese Perpetual Calendar II IW502308 has a mechanical automatic self-winding IWC caliber 51613 Pellaton movement that's rhodium-plated with fausses cotes embellishment. It's constructed with 66 jewels, a shock absorber mechanism, and a straight-line lever escapement. It has a Glucydur® beryllium alloy balance with a high-precision adjustment cam on balance arms adjusted to cold, heat, and 5 positions. It includes a self-compensating Breguet balance spring, a micrometer regulator, and a skeletonized 22K rotor with a gold medallion inlay engraved “IWC - Probus Scafusia (Fine Schaffhausen).” The movement oscillates at a frequency of 21,600 vph (3 Hz).

This IWC Portuguese Perpetual Calendar II IW502308 has a mechanical automatic self-winding IWC 51613 movement. It's ultra-precise, with larger moon phase wheels that contain a higher number of teeth to reduce the deviation. Theoretically the moon phase display must only be adjusted by only 1 day in 577.5 years. The Portuguese Perpetual Calendar II debuted in 2010. This watch was made in an edition of only 500 examples, only available in IWC boutiques.