Pocket Watch Database

Illinois Grade 503 Production Charts

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

[1915,1916,1917,1918,1919]
[10,2400,1500,500,1100]


Illinois Watch Co. Grade 503 Production Map Relative to Company Lifespan

Start of Production
End of Production


Grade Production Runs Lowest Highest Start End Profile Code/Image
503 5,510 14 2,799,511 3,537,300 1915 1919
1,000 1 3,011,001 3,012,000 1916 1916 12s-M3-15j-ONP-U-
1,000 3,011,001 3,012,000 1916
500 1 3,089,001 3,089,500 1917 1917 12s-M4-15j-ONP-U-Hallmark
500 3,089,001 3,089,500 1917
400 1 3,382,001 3,382,400 1918 1918 12s-M4-15j-ONP-U-
400 3,382,001 3,382,400 1918
3,310 10 2,799,511 3,537,300 1915 1919 12/14s-M4-15j-ONP-U-
10 2,799,511 2,799,520 1915
300 2,889,001 2,889,300 1916
300 2,896,401 2,896,700 1916
500 2,998,001 2,998,500 1916
500 3,144,001 3,144,500 1917
500 3,242,001 3,242,500 1917
100 3,424,001 3,424,100 1918
400 3,468,001 3,468,400 1919
400 3,476,601 3,477,000 1919
300 3,537,001 3,537,300 1919
300 1 2,901,601 2,901,900 1916 1916 12/14s-M4-17j-ONP-U-
300 2,901,601 2,901,900 1916