The one documented in the Goldberger book. #7 , 10 were made in total for Italy WW2
There is some speculation that these were part of an order to the Italian Airforce.
But no one has found clear evidence as far as I am aware.
The theory is that It is highly unusual for an agent to order 6 or more watches of the exact
specification for anything other than military orders for an ultra expensive tool watch.
Watches 47mm in size is a ridiculously large wrist clock in 1940s. https://en.wikipedia.org/wiki/Regia_Aeronautica