Rockford Pocket Watch: Serial Number 417460 (Grade 66)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/417460

Access Date: January 27, 2023

From the American Horology Archive:

Rockford Watch Co.

Grade: 66

Manufacturer:	Rockford
Manufacturer Location:	Rockford, Illinois
Movement Serial Number:	417460
Grade:	66
Model:	7
Estimated Production Year:	1893
Run Quantity:	500
Grade/Model Run:	13 of 17
Grade/Model Total Production:	14,700
Variant Est. Production:	14,000 (18S-M7-11J)
Size:	18s
Jewels:	11j
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Inlay Color:	Black
Movement Setting:	Lever
Plate:	Full Plate
Regulator:	Plain
Hairspring:	Flat
Escapement Type:	Straight-line
Standard Dial Type:	Single-Sunk
Adjusted:	No
Railroad Grade:	No
Movement Markings:	R.W.Co. Rockford Ill.
Data Research:	1907 Rockford Serial List
Case:	Various
Registry Population:	4 (0.80%)
Database Version:	v49.701

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Production Metrics Tree: Grade 66

Target Profile: 18S-M7-11J-ONL-U

Rockford Grade 66 (All Variations): 14,700 ETP
18S: 14,700 100.00% 18s, Grade 66
18S-M7: 14,700 100.00% 18s, Grade 66, Model 7
18S-M7-11J: 14,000 95.24% 18s, Grade 66, Model 7, 11 Jewels	Other: 700 Other Jewels or Unclassified
18S-M7-11J-ONL: 14,000 95.24% 18s, Grade 66, Model 7, 11 Jewels, Openface/Lever/Nickel
18S-M7-11J-ONL-U: 14,000 95.24%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
1		417025	#25	Marketplace	February 12, 2013
2	Image Credit: MichaelB	417045	#45	Collection	April 17, 2017
3		417398	#398	Marketplace	October 12, 2014
4	Image Credit: Kosborne	417460	#460	Collection	February 15, 2021
Standard Deviation of Known Examples: 229.03 (Expected: 144.48, Δ84.54/16.91%)

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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.