Pocket Watch Database
Rockford Grade 620 (Model 4) Production Metrics
Grade:
620
Size:
16s
Model:
4
Total Runs:
2
Total Produced:
700
Production Era:
1905 - 1908
Earliest Serial:
#662,801
Latest Serial:
#760,000
Rockford Grade 620 (Model 4) Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1905,1908]
[200,500]
Rockford Grade 620 (All Models) Production Metrics
Grade:
620
Size:
16s
Model:
4
Total Runs:
2
Total Produced:
700
Production Era:
1905 - 1908
Earliest Serial:
#662,801
Latest Serial:
#760,000
Rockford Grade 620 Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1905,1906,1907,1908]
[200,0,0,500]
Rockford Grade 620 Production Runs
| Run Sequence | Run Start | Run End | Quantity | Est. Production Year | Profile Code |
|---|---|---|---|---|---|
| 1 | 662,801 | 663,000 | 200 | 1905 | 16S-M4-21J-HNP-A5P |
| 2 | 759,501 | 760,000 | 500 | 1908 | 16S-M4-21J-HNL-A5P |
RUNS2 |
FIRST662,801 |
LAST760,000 |
ESTIMATED PRODUCTION700 |
PRODUCTION ERA1905 - 1908 |