Illinois Grade 23

Grade 23 is a 15j Openface watch maufacturered by Illinois. The size 3/0s, Model 3 movement features.

Grade 23 Movement Characteristics

Size3/0s
Jewels15j
ConfigurationOpenface
Finish
Model3 or 4
SettingPendant

Grade 23 Production Info

Total Production33,930
Number of Runs57
Production Years1915-1920
First Serial2,817,891
Last Serial3,693,000
Largest Run2,000
Smallest Run10
Most Common Run1,000