Gebrüder Hahn, Stuttgart AN ASTRONOMICAL?CYLINDER WATCH WITH?CALENDAR, PERIODS OF THE DAY, DEAD CENTRE SECONDS AND?HALF-SECOND BEATING BALANCE IN LATER SILVER CASE MOVEMENT CIRCA 1800, CASE MID 19TH CENTURY
Gebrüder Hahn, Stuttgart AN ASTRONOMICAL?CYLINDER WATCH WITH?CALENDAR, PERIODS OF THE DAY, DEAD CENTRE SECONDS AND?HALF-SECOND BEATING BALANCE IN LATER SILVER CASE MOVEMENT CIRCA 1800, CASE MID 19TH CENTURY