Ditisheim Birch & Gaydon
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Front, Back, Dial, Case Mark, Movement view 1, Movement view 2, Closeup of Movement

This is an example of Ditisheim's affix applied to a Guillaume balance to further adjust the temperature correction. The English patent for Ditisheim's invention is inscribed on the plates and the watch has a patent regulator. Otherwise, it is the same as the example with only Swiss markings.

This example was retailed by Birch & Gaydon who were very high end retailers and is marked with their Land & Water dial that was reserved for better technical pieces.