Pocket Watch Database
Rockford Grade 561 (Model 4) Production Metrics
Grade:
561
Size:
16s
Model:
4
Total Runs:
4
Total Produced:
5,000
Production Era:
1902 - 1913
Earliest Serial:
#603,001
Latest Serial:
#920,000
Rockford Grade 561 (Model 4) Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1902,1908,1913]
[2000,1000,2000]
Rockford Grade 561 (All Models) Production Metrics
Grade:
561
Size:
16s
Model:
4
Total Runs:
4
Total Produced:
5,000
Production Era:
1902 - 1913
Earliest Serial:
#603,001
Latest Serial:
#920,000
Rockford Grade 561 Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1902,1903,1904,1905,1906,1907,1908,1909,1910,1911,1912,1913]
[2000,0,0,0,0,0,1000,0,0,0,0,2000]
Rockford Grade 561 Production Runs
| Run Sequence | Run Start | Run End | Quantity | Est. Production Year | Profile Code |
|---|---|---|---|---|---|
| 1 | 603,001 | 605,000 | 2,000 | 1902 | 16S-M4-17J-HNP-AT |
| 2 | 783,001 | 784,000 | 1,000 | 1908 | 16S-M4-17J-HNP-AT |
| 3 | 902,001 | 903,000 | 1,000 | 1913 | 16S-M4-17J-HNP-AT |
| 4 | 919,001 | 920,000 | 1,000 | 1913 | 16S-M4-17J-HNP-AT |
RUNS4 |
FIRST603,001 |
LAST920,000 |
ESTIMATED PRODUCTION5,000 |
PRODUCTION ERA1902 - 1913 |