Illinois Grade 503

Grade 503 is a 15j Openface watch maufacturered by Illinois. The size 12s, Model 4 movement features a nickel finish.

Grade 503 Movement Characteristics

Size12s
Jewels15j
ConfigurationOpenface
FinishNickel
Model3 or 4 or 4
SettingPendant
AdjustedNo
Railroad GradeNo

Grade 503 Production Info

Total Production5,510
Number of Runs14
Production Years1915-1919
First Serial2,799,511
Last Serial3,537,300
Largest Run1,000
Smallest Run10
Most Common Run500