ZN AU RK PC Stainless Steel

This exceptional luxury sports timepiece combines one of watchmaking’s most celebrated integrated bracelet designs with the sophistication of a perpetual calendar complication. Introduced during a period when very few manufacturers were producing perpetual calendar wristwatches, it became one of the earliest luxury sports watches to unite elegant styling with such an advanced mechanical complication. Its 39mm stainless steel case preserves the iconic proportions of the original design while maintaining an impressively slim profile.

Crafted entirely from stainless steel, the case features alternating satin-brushed and polished finishes with sharply defined beveled edges, showcasing meticulous hand-finishing throughout. The signature octagonal bezel, secured by eight exposed hexagonal screws, contrasts beautifully against the brushed surfaces, while a sapphire crystal protects the dial. The smooth silver dial, free from textured guilloché, highlights the perpetual calendar display with four well-balanced subdials indicating the day, date, month, and moon phase. Applied baton hour markers and matching hands preserve the clean, timeless aesthetic while ensuring excellent legibility.

Inside beats an ultra-thin self-winding movement celebrated for its technical refinement, remarkable slimness, and exceptional reliability. The perpetual calendar mechanism is designed to accurately track varying month lengths and leap years with minimal adjustment over decades of operation. Completing the design is the iconic integrated stainless steel bracelet, distinguished by its alternating brushed surfaces and polished bevels, delivering exceptional comfort while reinforcing the watch’s architectural character. Combining groundbreaking horological engineering with timeless design, this remarkable timepiece remains one of the most revered perpetual calendar sports watches ever created.