Pocket Watch Database

Illinois Grade 437 (Model 1XT) Production Metrics

Grade:

437

Size:

12s

Model:

1XT

Total Runs:

8

Total Produced:

2,060

Production Era:

1917 - 1921

Earliest Serial:

#3,268,801

Latest Serial:

#3,904,400


Illinois Grade 437 (Model 1XT) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1917,1918,1919,1920,1921]
[200,10,250,800,800]

Illinois Grade 437 (All Models) Production Metrics

Grade:

437

Size:

12s

Model:

1XT

Total Runs:

8

Total Produced:

2,060

Production Era:

1917 - 1921

Earliest Serial:

#3,268,801

Latest Serial:

#3,904,400


Illinois Grade 437 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1917,1918,1919,1920,1921]
[200,10,250,800,800]

Illinois Grade 437 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 3,268,801 3,268,900 100 1917 12S-M1XT-19J-ONP-AT
2 3,269,801 3,269,900 100 1917 12S-M1XT-19J-ONP-AT
3 3,388,361 3,388,370 10 1918 12S-M1XT-19J-ONP-AT
4 3,482,151 3,482,400 250 1919 12S-M1XT-19J-ONP-AT
5 3,650,201 3,650,600 400 1920 12S-M1XT-19J-ONP-AT
6 3,761,401 3,761,800 400 1920 12S-M1XT-19J-ONP-AT
7 3,885,601 3,886,000 400 1921 12S-M1XT-19J-ONP-AT
8 3,904,001 3,904,400 400 1921 12S-M1XT-19J-ONP-AT
RUNS

8

FIRST

3,268,801

LAST

3,904,400

ESTIMATED PRODUCTION

2,060

PRODUCTION ERA

1917 - 1921