TAG Heuer Warranty
Discover the warranty policy covering your watch
A chronograph is a watch fitted with an additional function which can be used by operating the pushers (start/stop/reset) to measure continuous or interrupted periods of time.
All TAG Heuer chronographs, both quartz or automatic, share two basic functions:
Simple time measurement: This function measures any period of time from a few seconds to 12 hours, even fractions of seconds, depending on the model.
Additional time measurement: This function measures several consecutive times by adding them together to obtain a cumulative total.
TAG Heuer chronographs may include:
Tachymeter: Depending on the model, some TAG Heuer chronographs include a tachymeter scale on the dial flange. This indicates average speed over a given distance. Activate the chronograph at the start of the known distance, and then once you have reached the destination i.e. 1 mile/km, stop the chronograph. The second-hand points to your average speed on the tachymeter scale. This only works at speeds of over 60 m h/km h and for distances of 1 mile or 1 km.
Specificities for some mechanical chronographs
Oscillating pinion: Patented by Heuer in 1887, and still used today in the mechanical chronographs of most Swiss watch brands, the oscillating pinion comprises a moving rod and two pinions. This mechanism improves upon the old two-wheel system, allowing the chronograph to function more efficiently, and ensuring the instantaneous start of the chronograph. When the chronograph is not in use, it isn’t connected to the movement, once the chronograph is engaged the power from the gear train turns the oscillating pinion, connecting the chronograph to the movement’s power reserve, and starting the chronograph.
If you have a watch that has two separate power reserves, i.e. one for the movement, and one for the chronograph, then the oscillating pinion is not required, as it does not need to be connected to the movement.
Column wheel: The column wheel smoothly and precisely coordinates the start, stop, and return-to-zero functions of the chronograph.
Troubleshooting your chronograph:
This movement requires a certain amount of play in the wheels. In order to regulate the timekeeping, the hand sometimes jumps very minimally and at a very high speed. This gives the impression that it is stuttering as the hand moves round. The performance of the watch is not affected, ensuring its precise timing capabilities.
There is a risk to the water-resistance of your timepiece if the push buttons are manipulated incorrectly. So we highly recommend that when in contact with water, avoid using the buttons, and make sure that your crown is correctly screwed in, or in the neutral position (depending on model).