Pocket Watch Database

Illinois Grade 527 Production Charts

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

[1925,1926,1927]
[3000,3000,6000]


Illinois Watch Co. Grade 527 Production Map Relative to Company Lifespan

Start of Production
End of Production


Grade Production Runs Lowest Highest Start End Profile Code/Image
527 12,000 14 4,575,001 4,988,000 1925 1927
400 1 4,575,601 4,576,000 1925 1925 12s-M3-19j-ONP-A5PT-
400 4,575,601 4,576,000 1925
9,600 11 4,575,001 4,988,000 1925 1927 12s-M3XT-19j-ONP-A5PT-
600 4,575,001 4,575,600 1925
1,000 4,619,001 4,620,000 1925
1,000 4,725,001 4,726,000 1926
1,000 4,814,001 4,815,000 1926
1,000 4,841,001 4,842,000 1926
1,000 4,871,001 4,872,000 1927
800 4,882,001 4,882,800 1927
200 4,882,801 4,883,000 1927
1,000 4,891,001 4,892,000 1927
1,000 4,958,001 4,959,000 1927
1,000 4,987,001 4,988,000 1927
2,000 2 4,677,001 4,924,000 1925 1927 12s-M3XT-19j-ONP-A5PT-A. Lincoln
1,000 4,677,001 4,678,000 1925
1,000 4,923,001 4,924,000 1927