Experience the pinnacle of horological artistry with the Patek Philippe Self-Winding Mechanical Watch, featuring the Caliber 26-330 S QR. This exceptional timepiece boasts a perpetual calendar with a retrograde date hand, displaying the day, month, and leap year in apertures, moon phases, and sweep seconds. The silvery opaline dial, with its intricately hand-engraved center and blackened white gold applied Breguet numerals, rests on an 18K gold dial plate. Encased in meticulously hand-engraved rose gold, including the case, hinged cover, crown, lugs, and screws, this watch measures 38 mm in diameter and 11.81 mm in thickness and is water-resistant to 30 meters. A hand-engraved hinged dust cover safeguards the sapphire crystal case back. Completing this masterpiece is a hand-stitched, patinated brown alligator leather strap with square scales and a hand-engraved rose gold fold-over clasp. This watch is a testament to Patek Philippe’s legacy of craftsmanship and timeless elegance.