Introduced here from 1969, the Longines Ultra‑Chron represents late‑1960s watchmaking focused on accuracy and practical elegance. Its restrained lines and purposeful proportions speak to an era when dress and performance converged. At the heart sits the Cal. 431 automatic movement, a period Longines caliber engineered for reliable daily use. For the contemporary collector, this Ultra‑Chron offers a direct connection to Longines’ technical tradition and the understated refinement of mid‑century design, making it a compelling choice for those who value mechanical authenticity and classic proportions.