The Patek Philippe 5159J-001 from the Perpetual Calenda Grand Complications collection features a 37mm 18k yellow gold case with a polished finish. Its white Roman dial offers a classic, elegant design with a moonphase and date display for added functionality. Powered by an automatic movement, this timepiece ensures precise timekeeping. The brown crocodile leather strap provides a luxurious and comfortable fit. With a sapphire crystal and water resistance up to 30 meters, it combines intricate complications with high-end craftsmanship