“The World’s Most Accurate Watch”: The Longines Ultra-Chron and the calibre 431
by Brent Robillard A history of high-frequency Last year, I purchased a 1969 Longines Ultra-Chron ref. 8024 from a reputable dealer in Toronto, Canada. I have been on a vintage kick of late. What draws me to watches like this is twofold. There is the retro aesthetic, of course. As in almost all things, the ventral tegmental dopamine shot of attraction is what fires our … Continue reading “The World’s Most Accurate Watch”: The Longines Ultra-Chron and the calibre 431