The movement is marked Rockford Watch Co. This dates it to about 1878.
It is a Keywind, Keyset full plate movement with 11 jewels. The large Solid Silver case is marked Dueber Coin, and is in good condition with some wear. Representing the large 4ounce case. To set time, you must. Open front cover (at 1pm) and turn hand centerpost with key.Watch has been serviced and is keeping good time. Total weight of watch is 6 ounces. Great watch to carry or for a collection! We have been a member of National Association of Watch & Clock Collectors since 2007.