Breguet 2516, the first perpetual calendar wrist watch ever made?
According to Breguet archives, this watch has been made in 1929 and sold a few years after, in 1934, to a big fan of the brand.
Here you have a 39 x 26 mm white gold Tonneau case. The dial is made in silver, with its unmistakable Breguet hands and hours markers.
The perpetual calendar can be set by a single lever.
This marvel is now part of the Breguet Museum. Which is a very good thing.
Thanks to my contact at Breguet who sent me these pictures and informations.