The watch in the picture had a movement marked 321, which was the same movement used in early Speedmaster and some Seamaster chronographs. Unfortunately I don't have any pictures of the movement but I did see it.
This is not evidence that Gueblin watches often have 321 movements. Rather, Gueblin watches built a wide variety of watches using whatever caught their fancy. They were jeweler's and designers first, which means their products are diverse and eclectic.
The watch in the picture was a one owner watch from a prominent doctor who had patented surgical instruments. There are not many like it. Easier to find a G-body 911 in pristine condition, (although the watch was considerably cheaper.) Still, if money were no issue, I could buy a low mileage 1988 911 this afternoon. A Gueblin with a 321? Good luck ever finding one.
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