The Calibre 1969 is TAG Heuer’s first movement totally built in-house, based on the design of the Calibre 1887 chronograph watch movement, but with a vertical-clutch system, 28,800 vph (4 Hz); max 80 hours power reserve and a difference in time adjustment, after 24 hours, of -4 to +6 seconds. All TAG Heuer automatic movements…