Pocket Watch Database
Rockford Grade 550 (Model 4) Production Metrics
Grade:
550
Size:
16s
Model:
4
Total Runs:
2
Total Produced:
800
Production Era:
1899 - 1900
Earliest Serial:
#544,501
Latest Serial:
#558,500
Rockford Grade 550 (Model 4) Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1899,1900]
[300,500]
Rockford Grade 550 (All Models) Production Metrics
Grade:
550
Size:
16s
Model:
4
Total Runs:
2
Total Produced:
800
Production Era:
1899 - 1900
Earliest Serial:
#544,501
Latest Serial:
#558,500
Rockford Grade 550 Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1899,1900]
[300,500]
Rockford Grade 550 Production Runs
| Run Sequence | Run Start | Run End | Quantity | Est. Production Year | Profile Code |
|---|---|---|---|---|---|
| 1 | 544,501 | 544,800 | 300 | 1899 | 16S-M4-17J-HNL-U |
| 2 | 558,001 | 558,500 | 500 | 1900 | 16S-M4-17J-HNL-U |
RUNS2 |
FIRST544,501 |
LAST558,500 |
ESTIMATED PRODUCTION800 |
PRODUCTION ERA1899 - 1900 |