A high-precision Swiss-made chronograph featuring Rolex's iconic Oyster Perpetual case in 904L stainless steel, with a fixed black Cerachrom bezel calibrated for tachymetric speed measurement. The crisp white dial showcases three black subdials (12-hour, 30-minute, and 1/8-second counters), applied hour markers with Chromalight luminescence, and central chronograph hands—all protected by scratch-resistant sapphire crystal. Powered by the self-winding Calibre 4130 movement, COSC-certified as a Superlative Chronometer, ensuring ±2 sec/day accuracy. The integrated Oyster bracelet with Oysterlock safety clasp ensures secure, comfortable wear. Ideal for motorsport enthusiasts and collectors seeking timeless luxury with sporty functionality; equally suited for formal events or daily wear due to its versatile elegance. The green '7750 KING' tag is a third-party dealer identifier—not part of the original Rolex design—and indicates this piece may be from a specialized retailer or pre-owned market. Water-resistant to 100m, it combines robust engineering with refined aesthetics.