After looking at it some more, this may just be an older redial. The fact that the 'International Watch Co Schaffhausen' and 'swiss' looks to be factory spec made me think it could be original, but the probus scafusia logo as well as the subdial indices look off. Can't really make a convincing case for either argument without any definitive proof, but the op's instinct to stay away serves him well, I think.
The movement engraving is as it should be. The A should be big, the S's should be different, and I think I can make out the I. While I really love this movement for its chronometer-like performance, the level of finishing is not quite on par with similar offerings from the Big 3.
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