Longines Longines Ultra-Chron

The Longines Ultra-Chron collection represents the brand’s revival of one of their most iconic innovations from the 1960s. First introduced in 1967, the original Ultra-Chron made headlines as one of the first high-frequency automatic watches of its time, operating at 36,000 vibrations per hour, a significant leap in precision. The name "Ultra-Chron" refers to "ultra-chronometer," indicating an exceptional level of accuracy, exceeding standard chronometer certification. The 2022 relaunch of this collection was aimed at bringing the legendary heritage back, while integrating modern technology and materials, appealing to both watch enthusiasts and those who appreciate vintage aesthetics.

Features And Design

The Ultra-Chron collection is defined by its high-frequency movement and durable design, offering superior accuracy and robustness. The watches feature a distinctive cushion-shaped case, inspired by the original 1967 model, often made from stainless steel. They are equipped with sapphire crystal glass, which provides clarity and scratch resistance, along with a screw-down crown for enhanced water resistance. With 300 metres of water resistance, these watches cater to both underwater exploration and everyday use. The collection combines retro styling with modern functionality, including luminous hands and markers for readability and a unidirectional rotating bezel, particularly in models designed for diving. The Ultra-Chron Diver is available in multiple strap options, including a stainless steel bracelet and leather strap versions.

Iterations And Movements

The 2022 Ultra-Chron Diver is a key model in the revived collection, powered by the in-house calibre L836, a modern high-frequency automatic movement that beats at 36,000vph. This movement offers a 59-hour power reserve and is equipped with a silicon balance spring, enhancing its resistance to magnetism and shock, ensuring greater reliability over time. The movement's high frequency allows for greater accuracy, reducing timing deviations compared to lower-frequency movements. True to their heritage, Longines has ensured that these watches maintain a high degree of accuracy and are chronometer-certified, tested by TIMELAB in Geneva, ensuring their precision meets the highest standards.