These three apparently diverse photos have (at least) one horological link in common.

What do you think is the strongest common thread that links these three images, and how?

Leave your answers in the comments below, but note: I will not publish any correct responses for 24 hours to avoid a string of follow-the-leader answers.

Good luck!

Updated May 26, 2016

The common link between the three photos above is Geneva-based, family-run movement developer Agenhor.

That “lizard-infested” sundial is in the front garden at Agenhor in Geneva’s suburb, Meyrin.

Agenhor has a patent on this special gear tooth profile  — look carefully at the girl’s hair in the pictogram again. This is the sign for “ladies” at Agenhor.

Agenhor developed the complete movement of the Fabergé DTZ. I took this photo of a DTZ movement being assembled at Agenhor (see First Look: The Surprising Movement Of The Fabergé Visionnaire DTZ (Dual Time Zone).