You may notice that the first movement rendering below has a rounded rotor without Côtes de Genève (Geneva stripes), but there arealso rounded versions with 8 vertical stripes (as seen in the photo below).

Older models will have a solid rotor, while the newer versions have two triangle shapes cut out at the bottom. The Calibre 5 has been in production for quite some time and has undergone some updates in terms of style. If you find examples of watches that contain the Calibre 5 but with obvious differences in the appearance of the rotors (oscillating weight), do not be alarmed. “A number of TAG Heuer automatic movements are awarded an Official Swiss Chronometer Control (C.O.S.C.) Certificate, the ultimate recognition of precision and reliability.” Different Rotors However, keep in mind that not all Calibre 5 movements are COSC. TAG also has a high grade version of the Calibre 7 which is COSC certified. TAG also uses a high grade variation of the 2824 which is COSC certified. The TAG Heuer Calibre 7 is a Swiss made automatic movement based on the either the ETA caliber 2892-A2 or Sellita SW300-1 depending on the model and year of the watch. 25 jewels means you have an ETA, 26 jewels means you have the Sellita.

The easiest way to tell which movement your watch has is to look at the jewel count engraved on the movement itself. Some of the topics covered in the caliber listing:Īs mentioned above, TAG Heuer watches powered by the Calibre 5 movement can contain either an ETA 2824-2 or Sellita SW200-1 base caliber.

Tag heuer calibre 5 vs 7