Not as mechanically sophisticated as your beautiful UN but how about this Japanese anime Perrelet Turbine. You only see the image when the blades are spinning. 1 of 4 (?) variations.
Thank you for sharing. We donāt see too many erotica watches on the forum, or at local meetups. Ulysse Nardin and Svend Andersen are the two brands I know of that offer modern erotica automatons, as I missing any others?