… did you notice the polished surface of the case?

Here the same reference with tachymeter scale in a later execution:

The Fisher shows enough scratches to believe that the surface was not refurbished recently:

I'm wondering whether the Fisher Scientific version was delivered with a polished top or the polishing was done later (what I assume).

I would appreciate any further informations about the Heuer Fisher connection.

Cheers,

Mick