according to the C of A, it is a quarter-repeater, 13/14 ligne calibre (13 lignes for the top plate, 14 lignes for bottom plate) of 23 douzieme thickness (4.32 mm), manufactured in 1913. It was cased-up as a wrist watch in 1946 with "couronne ร 6 heures"....
Now those are beauties. Nicoโs photo, too. Iโd probably go for the super-simple stealthy one...but really, given the options, it would be one of the most difficult choices to make! Best E.