La montre normale : essai d'unification /
Montandon, F.,
La montre normale : essai d'unification / Avant-propos de H. Morel-Fourrier. - 64 pages : illustrations (4 folded) ; 20 cm - Bibliothèque horlogère .
Wrist watches--Design and construction.
Wrist watches--Standardization.
Clocks and watches--Standardization.
Clocks and watches--Design and construction.
Making Industry Switzerland Normal standard watch Watch (general)
La montre normale : essai d'unification / Avant-propos de H. Morel-Fourrier. - 64 pages : illustrations (4 folded) ; 20 cm - Bibliothèque horlogère .
Wrist watches--Design and construction.
Wrist watches--Standardization.
Clocks and watches--Standardization.
Clocks and watches--Design and construction.
Making Industry Switzerland Normal standard watch Watch (general)