In the Complete Price Guide To Watches their is listing for the Sangamo Special 23J M#9-10 it says Sangamo Special HINGED case. Is this case just where the back is hinged. Does the front unscrew? I've seen on some old listings for Sangamo Specials where they have a triple case. What kind of case would this be listed as in the price guide? Thanks again guys for all the help.
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