Today my postman brought me:
which turned out to have a Bifora 91/1(SC) movement:
in nice condition but with a strange bit of damage to the edge of the inner case and - large - movement ring. Anyway, its working well so far. bidfun-db Archive: Watch Movements: Bifora 91/1(SC)
Now with a strap:
Quite big at 35mm across:
It doesn't say German or foreign anywhere.
I notice that Dr Ranfft's entry for the base movement bidfun-db Archive: Watch Movements: Bifora 91 refers to Indian production till 2000.
A translated history here: Google Translate
This is the back:
What do you think? German or Indian?