TAG HEUER CHRONOMETER
Only the watches that are certified chronometers are accompanied by the COSC certificate. This
confirms that the movement has successfully passed all the tests of the Swiss Official Chronometer
Control and that its precision and its reliability have been verified over a period of 15 days, in 5
positions and at 3 temperatures.
The personalized number engraved on your watch and marked on your certifi cate corresponds to the
chronometer’s movement number and guarantees that your watch is a chronometer certified by the
C.O.S.C.
9
