This is one you do not see very often. A 23-jewel wind up Bulova adjusted to 6 positions, isochronism and temperature. It is not the best example however I have only seen one other (it was much worse). So far it seems a good runner and is right on the money as a timekeeper.
Any one else have one like it, I would love to see pictures.

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Another 23J wind up. this is the common one. Can you tell what is different?

Nice looking watch Rich I noitce the frist one is adjusted to 6 postions and Isochronism and the last one is not..The frist one you pictured is a much better quailty movement.What is the date of the 2 movement,s

Thanks Samie the first one is from 1958 and the latter is 1960 it will be going on eBay tonight.

I tend to think that the watch is not adjusted to 6 positions, but 6 adjustments as it is marked. Heat, cold, isochronism, and 3 positions.