It's difficult to be certain from the photos that are posted . . . seems to be some black seal-rot along the bottom edge.

With so much of the value depending on the condition of the dial (and this seal), my advice would be to take it to a good watchmaker, who knows how to open the case, and then snap some photos of the dial.

Jeff

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: hi
: One way is , if you know how and have the tools, to open the watch,
: The other way may be: good photos from the dial edge, one you can
: guess....
: cheers mich