Pocket Watch Database
Illinois Grade 439 (Model 1XT) Production Metrics
Grade:
439
Size:
12s
Model:
1XT
Total Runs:
5
Total Produced:
330
Production Era:
1917 - 1921
Earliest Serial:
#3,268,951
Latest Serial:
#3,905,000
Illinois Grade 439 (Model 1XT) Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1917,1919,1920,1921]
[10,20,150,150]
Illinois Grade 439 (All Models) Production Metrics
Grade:
439
Size:
12s
Model:
1XT
Total Runs:
6
Total Produced:
370
Production Era:
1917 - 1921
Earliest Serial:
#3,268,951
Latest Serial:
#3,905,000
Illinois Grade 439 Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1917,1918,1919,1920,1921]
[10,40,20,150,150]
Illinois Grade 439 Production Runs
| Run Sequence | Run Start | Run End | Quantity | Est. Production Year | Profile Code |
|---|---|---|---|---|---|
| 1 | 3,269,961 | 3,270,000 | 40 | 1918 | 12S-M1-21J-ONP-AT |
| 2 | 3,268,951 | 3,268,960 | 10 | 1917 | 12S-M1XT-21J-ONP-AT |
| 3 | 3,482,481 | 3,482,500 | 20 | 1919 | 12S-M1XT-21J-ONP-AT |
| 4 | 3,650,901 | 3,651,000 | 100 | 1920 | 12S-M1XT-21J-ONP-AT |
| 5 | 3,761,951 | 3,762,000 | 50 | 1920 | 12S-M1XT-21J-ONP-AT |
| 6 | 3,904,851 | 3,905,000 | 150 | 1921 | 12S-M1XT-21J-ONP-AT |
RUNS6 |
FIRST3,268,951 |
LAST3,905,000 |
ESTIMATED PRODUCTION370 |
PRODUCTION ERA1917 - 1921 |