TAG Heuer Calibre 7 (Calibre 17 prototype) Automatic Chronograph Watch Movement
The Calibre 17 is based on the ETA 2894-2 modular chronograph movement.
In the first series of production, the Calibre 17 was called Calibre 7, the correction came later in order to avoid the confusion with the ETA 2892/2893 based movement which remained Calibre 7 until now. This movement is a very rare prototype from the first series, bearing the name Calibre 7, which is in fact based on a 2894 chronograph but with a slightly difference at the oscillating weight design.
TAG Heuer Calibre 17, Swiss Made. Automatic calibre.
Diameter: 28.6 mm (12 ½”) – 37 rubies. Rapid date correction.
Balance frequency: 28,800 vibrations per hour (4 Hz).
Power reserve: about 42 hours.
Hours — minutes — small seconds at 3 o’clock. Date window.
3 chronograph counters: minutes — hours. Chronograph central seconds.
Oscillating mass: “Côtes de Genève”, engraved “TAG Heuer — Calibre 7 — Swiss Made“.
The movement is working but it was never tested for precision. As for any other vintage or unused movement, a basic revision is recommended.
The article is sold as is – any other parts that are not mentioned in the description or shown in the photos are not included with this movement.
All the movements in our offers are original service or replacement parts meant to be used by professionals for watch servicing. The movements are handled and stored in different boxes or containers, operations that may affect their accuracy. These movements are supposed to be cleaned, oiled, timed or adjusted by a professional before fully corresponding to the manufacturer specifications.
ca. 42 hours
Chronograph, Date Window
Central Second, Self-Winding, Swiss Made