Pocket Watch Database

Illinois Grade 310 Production Charts

Note: Production dates are estimations but should be accurate within +/- 3 years.

[1912,1913]
[20,20]


Illinois Watch Co. Grade 310 Production Map Relative to Company Lifespan

Start of Production
End of Production


Grade Production Runs Lowest Highest Start End Profile Code/Image
310 40 2 2,357,721 2,373,400 1912 1913
20 1 2,373,381 2,373,400 1912 1913 16s-M6-23j-HNP-A6PT-
20 2,373,381 2,373,400 1912 1913
20 1 2,357,721 2,357,740 1912 1913 16s-M7-23j-ONP-A6PT-
20 2,357,721 2,357,740 1912 1913