Pocket Watch Database

Illinois Grade 439 Production Charts

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

[1917,1918,1919,1920,1921]
[10,40,20,150,150]


Illinois Watch Co. Grade 439 Production Map Relative to Company Lifespan

Start of Production
End of Production


Grade Production Runs Lowest Highest Start End Profile Code/Image
439 370 6 3,268,951 3,905,000 1917 1921
40 1 3,269,961 3,270,000 1918 1918 12s-M1-21j-ONP-AT-
40 3,269,961 3,270,000 1918
330 5 3,268,951 3,905,000 1917 1921 12s-M1XT-21j-ONP-AT-
10 3,268,951 3,268,960 1917
20 3,482,481 3,482,500 1919
100 3,650,901 3,651,000 1920
50 3,761,951 3,762,000 1920
150 3,904,851 3,905,000 1921