Pocket Watch Database
Illinois Grade 306 Production Charts
Note: Production dates are estimations but should be accurate within +/- 3 years.
[1909,1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925]
[130,1480,1270,1330,2230,60,2260,2900,5820,2650,4110,5000,4490,5300,3000,0,2000]
Illinois Watch Co. Grade 306 Production Map Relative to Company Lifespan
Start of Production
End of Production