Zenith Chronomaster Grande Class XXT Open

The Zenith Chronomaster Grande Class XXT Open is a stunning fusion of classic horology and modern chronograph functionality, showcasing Zenith’s iconic El Primero movement. The Ref. 03.0520.4021/01.M520, featuring a sophisticated grey dial, offers precision, elegance, and mechanical artistry in one timepiece. The 44mm stainless steel case, with its polished and brushed surfaces, delivers a bold yet refined presence on the wrist. The grey sunburst dial, accented with applied indices and luminescent hands, ensures optimal readability and depth. The open-heart display at 10 o’clock, revealing the legendary El Primero escapement, adds a striking technical touch, while the power reserve indicator at 6 o’clock reinforces its practical utility. Completing the look, the watch is secured by a stainless steel bracelet, ensuring a seamless blend of sophistication and durability. Inside, the automatic El Primero 4021 movement, operating at 36,000 vph, delivers a 50-hour power reserve and chronograph precision measured to 1/10th of a second. Built for precision enthusiasts, this Chronomaster is a mechanical masterpiece designed for those who appreciate high-frequency movements and intricate craftsmanship. With its iconic open-heart design, high-performance chronograph, and contemporary grey dial, the Zenith Chronomaster Grande Class XXT Open is a must-have for collectors seeking a refined yet technically advanced timepiece. Our offering is in very good condition and comes with it's box and papers. Covered by our limited warranty of 1 year, starting on the date of purchase.