The Frédérique Constant x The Naked Watchmaker Perpetual Calendar is a limited-edition collaboration that showcases technical sophistication with a modern, deconstructed aesthetic. Housed in a 42mm stainless steel case, this timepiece features a partially skeletonized dial that reveals the intricacies of its in-house automatic caliber FC-775, offering perpetual calendar functionality with displays for date, day, month, leap year, and moonphase. The transparent, architectural design reflects The Naked Watchmaker’s philosophy of horological education, allowing enthusiasts to appreciate the complexity and finishing of the movement from both sides. With a 38-hour power reserve and sapphire crystal on the front and back, this piece blends Swiss craftsmanship, mechanical ingenuity, and contemporary design, making it an ideal choice for collectors seeking a perpetual calendar with a distinctive and educational edge.