IWC Portugieser Perpetual Calendar II 18K White Gold "Ardoise" Edition with Anthracite Grey Arabic Dial and Moonphase. 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 white 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. Fitted on a brown alligator leather strap with 18kt white gold fold-over deployant buckle.

At its core lies the automatic self-winding IWC caliber 51613 movement, a marvel in rhodium-plated craftsmanship. With 62 jewels, a shock absorber mechanism, and a straight-line lever escapement, this movement is a testament to precision. Its features include a monometallic balance adjusted to 5 positions, a self-compensating Breguet balance spring, and a micrometer regulator. The patented Pellaton winding mechanism, with a skeletonized rotor adorned with a gold medallion engraved "IWC - Probus Scafusia," adds a final touch of distinction to this timekeeping treasure. The IWC Portugieser Perpetual Calendar II is not merely a watch; it’s an embodiment of timeless elegance and mechanical excellence.

The moonphase complication of the IWC Portugieser Perpetual Calendar II transcends mere functionality, transforming the watch into a celestial canvas that captures the imagination. Poetically positioned at the 12 o’clock mark, the moonphase subdial is a miniature masterpiece, depicting the lunar cycle with mesmerizing precision. The moon, rendered in exquisite detail, gracefully waxes and wanes against the slate grey backdrop, evoking the timeless dance of celestial bodies in the night sky.

Surrounding the moon, the dial becomes a celestial theatre, with stars delicately scattered across the expanse. Each star, meticulously placed, adds a touch of cosmic enchantment to the timepiece. These celestial elements not only enhance the aesthetic allure but also invite contemplation of the vastness and wonder of the universe with every glance.

As day transitions into night, the moonphase complication serves as a reminder of the interconnectedness of time and space. It invites wearers to gaze upon the watch and be transported to a realm where the celestial ballet unfolds in perpetual harmony. The IWC Portugieser Perpetual Calendar II, with its celestial storytelling, is not just a timekeeping instrument but a celestial companion, allowing one to carry a piece of the night sky wherever they go. It’s a sublime fusion of horology and astronomy, encapsulating the timeless allure of the cosmos on the wrist.

Reference No. IW502218