Zenith Chronomaster XXT Open (Ref. 03.1260.4021) watch only and mint. The Zenith Chronomaster XXT Open is powered by the iconic El Primero movement, introduced in 1969 as the world’s first fully integrated automatic chronograph. Its high-frequency precision (36,000 vph) made it a groundbreaking innovation in timekeeping. This same movement was trusted by Rolex, which used a modified version of the El Primero to power its Daytona chronographs from 1988 to 2000, cementing Zenith’s legacy in horological history. The XXT Open features a 45mm stainless steel case, a silver guilloché dial with an open-heart design and an automatic El Primero caliber 4021 movement, a power reserve indicator, combining modern sophistication with historic significance, a chronograph with a 30 minute counter, and a very comfortable black leather strap. This classic, mechanical chronograph is a perfect blend of precision, history, and luxury- It’s an extraordinary piece for those who truly appreciate the art of horology at its highest level. Offered at $2999 plus label , this watch is a must-have for discerning collectors and connoisseurs who seek unparalleled precision and craftsmanship in every tick. Don’t miss the chance to own a timeless masterpiece!