: Does anyone know if dials were still being done by hand in Heuer's day?

Certainly not by the 60s and 70s heyday. Remember they used a dial supplier (usually Singer in that period) and all they did was make dials for customers like Heuer and Rolex. Increasing automation was the order of the day. In the same link on VRF was a link to a company supplying the machinery to the likes of Singer and that showed a machine from the 50s that held two dial blanks, the operator rotating it 180 degrees after aligning and printing the first.

So it seems there was still quite some manual involvement in the 50s, but the link didn't really state whether that was the scale of instrument they were supplying to the big dial making companies or for smaller ateliers.

But I guess the process is I guess much the same, just on a larger scale with more automation. Something I wouldn't mind finding out more about, dial production is interesting!