Pocket Watch Database
Illinois Watch Co.
Initial Marking: I.W.Co.
Location: Springfield, Illinois
Years of Operation: 1869-1948
Purchased by Hamilton Watch Co., 1927
Production Jewels: 7-23 Jewels
Production Sizes: Wide Variety
Total Production: 5,600,000+
Factory Building Status: The original Illinois Watch Company factory building no longer exists. However, a later expansion was built to serve as a new frontage for the factory. Part of this addition still stands, and a modern structure has been built around it.
Serial Number Lookup
January 25, 1870
The Springfield Watch Co. begins operations with a capital stock of $100,000.
Construction of the Illinois Sprinfield Watch Co. factory is completed.
December 23, 1871
First watch finished: 15-Jewel Model 1 Stuart Keywind/Keyset
A New York office is opened at 11 Maiden Lane to faciliate sales for the Illinois Springfield Watch Co.
The Illinois Springfield Watch Co. offers its first stem-wind movement.
After struggling financially for a few years, a new company is organized to assume the Illinois Springfield Watch Co. with a capital stock of $250,000.
The Illinois Watch Co. begins offers 8s watches to fulfill growing demand in the ladies market.
June 4, 1877
The Springfield Watch Company is reorganized as the Illinois Springfield Watch Company with a capital stock of $100,000.
The Illinois Springfield Watch Co. is reorganized as the Springfield Illinois Watch Co.
All Illinois Watch Co. movement manufacturing is transitioned to use quick train.
A Chicago office is opened to faciliate sales for the Illinois Springfield Watch Co.
The Illinois Watch Co. begins manufacturing its own mainsprings for usage in movements.
The Illinois Watch Co. first uses soft enamal dials.
The Springfield Illinois Watch Co. is manufacturing 400 movements per day.
The Springfield Illinois Watch Co. is rebranded as the Illinois Watch Co.
The Illinois Watch Co. begins to offer a 4s watch marketed toward ladies. This is the smallest watch avaialble for purchase in America at the time.
The Illinois Watch Co. is manufacturing roughly 400 movements per day and employs about 900 people.
The Illinois Watch Co. decides to manufacturer primarily higher grade movements, those containing 17-23 jewels.
The Illinois Watch Co. is purchased by Hamilton Watch Co. following the death of company president Jacob Bunn, Jr. The factory continued operations in Springfield, Illinois until 1932. Illinois movements continued to be finished at the Hamilton factory until 1948.