The Tag Heuer 603.914 Chronometer is a handheld mechanical chronometer produced in the 1980s.
It measures time up to 10 minutes, displayed on the subdial at 12 o'clock, and is accurate down to a 10th of a second. The central hand runs a complete loop in 10 seconds, while the red outer scale allows the team to measure its average rate of strokes per minute.
The Chronometer 603.914 has a swiss made handwound movement with 7 jewels, and features a flyback function. It has a black fiberglass case, and a hesalite crystal.
The item listed here is new old stock and in perfect condition.