A Guide to Illinois Watch Co. size 12 watches, Grade 274B.
Run.
Date
From
To
Total
H/O
Jls
Adj.
Run.
Date
From
To
Total
H/O
Jls
Adj.
1
1911
2,394,411
2,395,000
590
H
19
T & Pos.
20
1914
2,621001
2,621570
570
H
19
T & Pos.
2
1912
2,416,001
2,416,410
410
O
19
T & Pos.
21
1914
2,661,301
2,662,000
700
O
19
T & Pos.
3
1912
2,416,611
2,417,000
390
O
19
T & Pos.
22
1914
2,665,001
2,665,300
300
O
19
T & Pos.
4
1912
2,418,001
2,418,610
610
O
19
T & Pos.
23
1914
2,676,701
2,677,700
1,000
H
19
T & Pos.
5
1912
2,451,221
2,451,400
180
H
19
T & Pos.
24
1915
2,702,301
2,703,000
700
H
19
T & Pos.
6
1912
2,451,401
2,452,000
600
H
19
T & Pos.
25
1915
2,708,001
2,708,300
300
H
19
T & Pos.
7
1912
2,456,001
2,456,100
100
H
19
T & Pos.
26
1915
2,709,501
2,710,000
500
O
19
T & Pos.
8
1912
2,456,101
2,456,220
120
H
19
T & Pos.
27
1915
2,764,501
2,765,000
500
O
19
T & Pos.
9
1912
2,456,221
2,456,300
80
O
19
T & Pos.
28
1915
2,765,001
2,765,500
500
O
19
T & Pos.
10
1912
2,456,301
2,456,720
420
O
19
T & Pos.
29
1915
2,765,501
2,766,000
500
H
19
T & Pos.
11
1912
2,510,001
2,510,470
470
O
19
T & Pos.
30
1915
2,808,801
2,809,000
200
O
19
T & Pos.
12
1913
2,510,471
2,510,970
500
H
19
T & Pos.
31
1915
2,814,001
2,815,000
1,000
O
19
T & Pos.
13
1913
2,547,671
2,548,000
330
H
19
T & Pos.
32
1915
2,818,201
2,819,000
800
H
19
T & Pos.
14
1913
2,559,001
2,559,170
170
H
19
T & Pos.
33
1915
2,823,001
2,823,200
200
O
19
T & Pos.
15
1914
2,598,701
2,599,000
300
H
19
T & Pos.
34
1916
2,925,301
2,925,500
200
O
19
T & Pos.
16
1914
2,608,001
2,608,470
470
H
19
T & Pos.
35
1916
2,925,601
2,926,000
400
O
19
T & Pos.
17
1914
2,608,471
2,608,770
300
O
19
T & Pos.
36
1916
2,929,001
2,929,100
100
O
19
T & Pos.
18
1914
2,613,971
2,615,000
1,030
O
19
T & Pos.
37
1916
2,934,501
2,935,000
500
H
19
T & Pos.
19
1924
2,619,371
2,620,000
630
H
19
T & Pos.
38
1916
2,936,001
2,936,500
500
H
19
T & Pos.
                      Total
17,170
     
Name
H/O
Estimate
Name
H/O
Estimate
Burlington Watch Co.
19 Jewels O.F.
8,310
Burlington Watch Co.
19 Jewels H.
8,860
 
         
Serial numbers used on this page by the kind permission of
Russell W Snyder
Grade 274b Movements found to date.
Grade 274B runs.
Last update 12/24/2015.
Grade 274B,
19 jewels adjusted to temperature & positions, manufactured from 1911 to 1916 a total of 17,170 movements in 38 runs make up this grade. Model 3
open faced and model 4 hunter; bridge movements of medium to high quality,  with double roller and patent micrometric regulator. Open faced 8,310
in 19 runs and Hunter 8,880 in 19 runs

Observations,
This sub grade '274B' has been created, the reason for this is all other grade 274 watches are models 1 and 2; 3/4 plate movements. I believe an
error was made in the records making the Burlington bridge models in the grade, models 1 and 4.
The movements have crosshatch pattern demaskeening, named Burlington Watch Co., a choice of gold strata cases and various dials were offered
and sold as mail order watches. The movements are marked Burlington Watch Co. Chicago on the pillar plate and double roller on the escapement
bridge, with the exception of the first 10 runs that are not marked double roller these may be single roller movements. Dials are not recessed into the
pillar plate and spread dials are fitted.

Description,
19 jewels, oreide settings; adjusted to temperature; compensating balance; double roller escapement; steel escape wheel; sapphire jewels; gold
beveled and polished center wheel; Breguet hairspring; patent regulator; safety pinion; concave and polished winding wheels; recoil click;
demaskeened in crosshatch pattern.
Image of hunter movement.