Tag Heuer Calibre 7

TAG Heuer Calibre 7

Tag Heuer Calibre 7

Brand Tag Heuer
Caliber Number 7
Base Caliber ETA 2892-A2 or Sellita SW300-1
Movement Type Automatic
Jewels 21 or 25 depending on the base
Power Reserve 42 hours – up to 50 hrs depending on the model
Vibrations Per Hour 28,800 bph (4Hz)
Lift Angle
51 degrees
Hand Count
Features Central hours; central minutes; central sweeping seconds; date at 3:00
Special Finishing
Côtes de Genève on the rotor
Country of Manufacture Switzerland
Known Models (Add your watch in the comments below…)

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. TAG also has a high grade version of the Calibre 7 which is COSC certified. Most, but not all of the Caliber 7 movements feature Côtes de Genève decorating on the rotor, which is also engraved with TAG Heuer / Calibre 7 / Swiss Made.

From Tag Heuer:

“All TAG Heuer automatic movements are made in Switzerland and must meet extremely strict criteria for precision before they make it onto your wrist. Their high frequency ensures excellent mechanical precision. 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.”

When did TAG switch to Sellita for the Calibre 7?

When brands flip flop between base movements, they usually don’t make a public declaration about it. There is typically a transition period where the old movement will continue to be installed and on the market while the new ones are introduced. Also, the age of a watch is not always based on the manufacturing date, but rather the original date of sate. For this reason, it is not easy to track changes such as base movement transitions. If you know when your watch was originally sold by the AD and what movement is inside, please comment below. Such as with Rolex serial numbers, the community can work together to crowdsource this kind of information.

Additional Resources:


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Sellita Caliber SW300-1 Watch Movement | Caliber Corner
1 year ago

[…] Heuer uses the SW300-1 as a movement for their Calibre 7 movement. If you know of other watch brands with their own caliber designation, but using the […]

5 months ago

Can I assume that since I only bought my new Carrera Twin-time from an AD in July 2023, that it must be a SW300-1, since ETA have not been supplying non-Swatch group competitor companies for many years now?

1 month ago
Reply to  Paul

Hi. I have as well a Carrera Twin Time from 2023 and inside there is a SW330-2. It is clearly visible on the main plate near the balance wheel.

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