M'Bob
·That's why I asked my OB's watchmaker, and then also one in Biel, and relayed what I heard from them here.
I am not doubting your story, to be clear. But: it is second hand information. Al, who has posted reliable information here for years, has offered first-hand information.
If your sources want to weigh in here with their documentation, great. In the interim, the information from Al has to supersede that until proven otherwise.