I have a later & smaller version (23.7 caliber Inside, 34mm case without crown, from around 1925). The dial is in a good condition but has lost its radium :
Sorry for the reflections on the glass, I always have difficulties taking pictures of watches with black dials.
A picture of the logo :
Wristwatches with black enamel dials are not so frequent. Other examples on OF?
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