Back side of 14kt green gold Solidarity case for IL 12 size grade 416

12 Size Grade 410- 23 Jewel Adjusted to 6 Positions

Since pictures of various Grade 410s are sprinkled throughout this thread I thought I would try to summarize the various variants known. It should be noted that the 12 size Grade 410 was the most prolific (N=4,680) of the 23 jewel 12 size watches that Illinois produced.

Unlike the numerous private labels seen on many Illinois grades I am only aware of two company’s with 410 private labels—Macys Lifetime series and Jason Weilier and Sons Boston. If you are aware of any others I would hope that you would share them.

According to Meggars and Ehrhardt none of the 410s have diamond cap jewels on the balance pivots nor do they have a true center bridge.

Model OF/Hunter Jeweled/Motor Barrel Production
Dates Number of Runs Estimated Block Serial Number **
3 OF Jeweled 1913/21 9 740
4 Hunter Jeweled 1913/22 4 140
5 OF Motor 1920/27 6 2800
6 Hunter Motor 1923 3 700
6 Hunter with
Special OF
Dial
Motor 1921/23 3 300

**Production estimates R Synder Database.