LANGEDORF, INVAR, ROSKOPF, LOT OF THREE DIFFERENT WATCHES, SWITZERLAND CIRCA 1890-1920 Epoch: 1890-1920 CIRCA Material: silver and burnished metal Diameter: 50-51-52 mm Case: smooth and machined Movement: remontoir Escapement: anchor and ankles Weight: - Rotating: yes To be serviced: yes Notes: LANGEDORF, INVAR, ROSKOPF, LOT OF THREE OPEN FACE POCKET WATCHES, WITH SILVER AND BURNISHED CASE, SWITZERLAND 1890-1920 CIRCA