Pocket Watch Database

Rockford Grade 640 (Model 3) Production Metrics

Grade:

640

Size:

16s

Model:

3

Total Runs:

2

Total Produced:

2,000

Production Era:

c.1910

Earliest Serial:

#824,001

Latest Serial:

#842,000


Rockford Grade 640 (Model 3) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1910]
[2000]

Rockford Grade 640 (All Models) Production Metrics

Grade:

640

Size:

16s

Model:

3

Total Runs:

2

Total Produced:

2,000

Production Era:

c.1910

Earliest Serial:

#824,001

Latest Serial:

#842,000


Rockford Grade 640 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1910]
[2000]

Rockford Grade 640 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 824,001 825,000 1,000 1910 16S-M3-21J-HNP-AT
2 841,001 842,000 1,000 1910 16S-M3-21J-HNP-AT
RUNS

2

FIRST

824,001

LAST

842,000

ESTIMATED PRODUCTION

2,000

PRODUCTION ERA

c.1910