Adams obtained the plant of the Newark Watch Co. Newark, NJ and had it shipped to Chicago, to be installed in a newly built factory in Cornell manufactured a range of ten grades of size watches.
The Cornell Watch Co. The Rockford Watch Company was organized in in Rockford, Illinois, located 93 miles west of Chicago, following the reorganization and move of the Cornell Watch Co. Former Cornell Watch Company employees, P. Wheeler Wheeler's Patent, etc and C. Parker became key employees establishing Rockford.
The factory building was built in , incorporating equipment purchased from the Cornell Watch Company. Clarke was appointed superintendent, Clarke was also from the Cornell Watch Co.
The first Rockford watch, a key-wind, size, full plate with expansion balance was released in May The company had 40 employees and was soon turning out 10 watches per day, all size, in five different grades.
The company sold directly to retailers. Rockford watches were advertised in railroad journals and were popular with railroad workers, with 3 railroads going through Rockford.
The highest grades of early Rockford watches were signed "Ruby" or "Ruby Jewels. Around Rockford size series and series railroad grade watches began being marked "RG", grade numbers began being marked on movements around Around railroad grade watches began being marked "Adjusted to 5 Positions. The company had financial difficulties in , and was reorganized as the Rockford Watch Co. Two of the principles of the Illinois Watch Case Co.
Eppenstein, purchased the Rockford Watch Co. Many of them are found with private engravings. The Rockford Watch Co. Rockford railroad grade watches not all were railroad approved The following is from list of railroad grade watches which is generally attributed Webb C. Not all of these were railroad approved even though all are railroad grade. These are approximate dates, actual dates may vary by years. The serial number being referred to is the serial number on the movement of the watch, not the case.