Never saw this type of IWC signature...
Curious to see what other more knowledgeable people will say.
I don't know if it's correct or not.
The people who would know are here:
http://www.iwc.com/forum/en/category/vintage-timepieces/
Please let us know when you find out.
gatorcpa
I dont think it is. Never seen that signature and the movements for 50s iwc (schaffhausen) are normally signed
Not definitive, but the logo is talked about here with some examples: http://www.iwc.com/forum/en/discussion/10300/
Movement engraving not looking right, Swiss - all the S,s look odd. International - last A looks huge and missing the i ?
Would like to see it better but on iPad mini
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.
This one was posted in Iwc.com , the only similar dial to the watch in this thread. To bad only one had answered my question on Iwc.com
http://www.iwc.com/forum/en/discussion/27287/
Hmmmm... ok. You know what's weird? When I saw the other cal 88, I immediately thought that the two logos don't quite match, but after a closer look I realized that excluding the 'IWC' the so-called football shapes are actually mirror and upside down images of one another. Pay close attention to the points - one side is droopy and the other is sharper. Don't know what to quite make of that except to say that at the risk of flip-flopping Romney-style, I think my first instinct was correct.
Edit: but of course, I didn't account for the off center indices in the sub dial. Oy vey... I don't know... My advice is to just stay away and find a better example. Im gonna go eat hot dogs and watch fireworks!
If it is torturing you this much, pass on it. After all, if you buy it and try to sell it later because you're not convinced it's original, you'll have a hard time finding a buyer that won't ask the same questions you're asking now.