Rockford Pocket Watch Grade 820: Estimated Production Metrics

Sell Your Watch Save to My Collection Print Page Find a Mainspring Find a Balance Staff

Grade 820 Model 8 Production
Grade 820 Total Production (All Models)

Rockford Grade 820 (Model 8) Production Metrics

Total Runs:

9

Total Produced:

331

Production Era:

1897 - 1898

Earliest Serial:

#503,461

Latest Serial:

#513,300

Rockford Grade 820 (Model 8) Production By Year

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

Rockford Grade 820 (All Models) Production Metrics

Total Runs:

9

Total Produced:

331

Production Era:

1897 - 1898

Earliest Serial:

#503,461

Latest Serial:

#513,300

Rockford Grade 820 Production By Year

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

Rockford Grade 820 Production Runs

Run Sequence	Run Start	Run End	Quantity	Est. Production Year	Profile Code
1	503,461	503,470	10	1897	18S-M8-17J-HNL-APTI
2	503,484	503,489	6	1897	18S-M8-17J-HNL-APTI
3	503,521	503,531	11	1897	18S-M8-17J-HNL-APTI
4	503,537	503,540	4	1897	18S-M8-17J-HNL-APTI
5	503,611	503,620	10	1897	18S-M8-17J-HNL-APTI
6	509,001	509,100	100	1897	18S-M8-17J-HNL-APTI
7	513,102	513,181	80	1898	18S-M8-17J-HNL-APTI
8	513,183	513,251	69	1898	18S-M8-17J-HNL-APTI
9	513,260	513,300	41	1898	18S-M8-17J-HNL-APTI
RUNS 9	FIRST 503,461	LAST 513,300	ESTIMATED PRODUCTION 331	PRODUCTION ERA 1897 - 1898