A Guide to Illinois Watch Co. size 12 Watches, Grade Illini.
Run.
Date
From
To
Total
H/O
Jls
Adj.
Named
1
1916
2,933,901
2,934,000
100
O
23
6 pos.
Illini
2
1916
2,935,001
2,935,100
100
O
23
6 Pos.
Illini
 
Total
200
 
 
Grade Illini runs.
Serial numbers used on this page by the kind permission of
Russell W Snyder
Last update 08/31/2018.
 

Grade Illni,
23 ruby and sapphire jewels adjusted to 6 positions, manufactured in 1916 a total of 200 movements in 2 runs make up this grade. Model 3 open  
faced;  bridge movements of extra high quality with Illinois superior motor barrel, double roller and patent micrometric regulator.

Observations,
The movements are brushed nickel pattern named Illini. The bridges have burnished set jewels, the dials are not recessed into the pillar plate and
stretched dials were fitted. The watches were factory cased and may have been fitted in Solidarity solid gold cases. The description states enamelled
dials were used although a wide range of metal dials can be found on this grade.

Description,
Nickel; 23 extra quality ruby and sapphire jewels; accurately  adjusted to  temperature, six positions and isochronism; very carefully rated and timed;
special quality hardened and tempered compensating balance with timing screws including mean time screws; gold train wheels; double roller
escapement; steel escape wheel; selected quality red ruby pallet jewels; ruby jewel pin; best quality Breguet hairspring; safety screw center pinion; entire
escapement cap jeweled; Illinois superior mainspring; Illinois friction reducing sapphire jeweled barrel; wide spread glass enemal dial.
Image from the first run
Image used on this page by the kind permission of
Jerry Treiman