Everyone is familiar with Zenith’s high-frequency El Primero automatic chronograph movement, released in 1969. However, not everybody is familiar with the world’s first high-frequency diver. The laurels, in this case, go to Longines with its 1968 Ultra-Chron ref. 7970 with a 5Hz frequency and a depth rating of 200m. Reintroduced in 2022, the Ultra-Chron returns […]
Continue reading ‘Introducing – Longines’ First Carbon Watch, The Ultra-Chron Carbon’
