Help: broken Chopard gear

[szvwj]

I have a broken Chopard Grand Tourismo that I'm trying to fix and I would really appreciate your help. It turns out that some of the teeth on the minute wheel are broken (see bottom right picture).

As near as I can tell, the movement is an Asian A07.111 (see picture below). The minute wheel from an ETA A07.111 is the same as an ETA7750 (I determined this from the ETA data sheet), so I purchased a new ETA7750 minute wheel from Cousins UK (thinking it might fit).

Unfortunately the ETA7750 minute wheel doesn't seem to be a direct replacement for the Asian A07.111 (clone) minute wheel. In the picture below you can see the difference between them.

Does anyone know where I can get a replacement minute wheel for this movement (what I think is an A07.111 clone)?

For reference:

The OD of the larger gear = .241"

The OD of the smaller (inner) gear = .072"

[szvwj]

Anyone?