M-155
Solothurn / Soleure
1855
Ste d’Horlogerie
Tir Federal
43.5 mm diameter
Gold
Two of the same watches with different inscriptions.
The upper watch reads: “ECHAPPMENT a cylindre Aiguilles (horse) Huit Trous en Rubis”
The lower watch reads: “Echappement a Cylindre Aiguilles (arrow) Huit Trous en Rubis”