Rockford Pocket Watch: Serial Number 428983 (Grade 66)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/428983

Access Date: May 17, 2025

From the American Horology Archive:

Rockford Watch Co.

Grade: 66

Production Inconsistent with Factory Records. See Research Notes.

Manufacturer:	Rockford
Manufacturer Location:	Rockford, Illinois
Movement Serial Number:	428983
Grade:	66
Variation:	LS
Model:	7
Estimated Production Year:	1893
Run Quantity:	1,000
Grade/Model Run:	16 of 17
Grade/Model Total Production:	14,700
Variant Est. Production:	5,000 (18S-M7-11J-ONL-U-LS)
Size:	18s
Jewels:	11j
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Inlay Color:	Black
Movement Setting:	Lever
Wind Mechanism:	Stem
Plate:	Full Plate
Regulator:	Type 6
Hairspring:	Flat
Escapement Type:	Straight-line
Standard Dial Type:	Single-Sunk
Adjusted:	No
Railroad Grade:	No
Movement Markings:	R.W.Co. Rockford Ill.
Case:	Various
Run ID:	470.66G16.18S403.187M85.O97.L333.11J109
Data Research:	1907 Rockford Serial List
Database Version:	v52.647
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Registry Population: Scoped for This Run Only	6 (0.60%)
$ Estimated Value (12 Month Change):	4.83% Analyzing 72 Sales
Research Note: Rockford factory serial lists designate this run as Grade 66 (Nickel, 11 Jewels). However, surviving examples suggest some of the run was finished as a finer adjusted grade with 17 jewels and two-tone plates. #428068: Verified as Two-Tone Movements Marked "17 J" and "Adjusted." #428427: Reported as Two-Tone Movements Marked "17 J" and "Adjusted." #428689: Verified as Two-Tone Movements Marked "17 J" and "Adjusted." [NAWCC] #428757: Verified as Two-Tone Movements Marked "17 J" and "Adjusted." #428833: Verified as Two-Tone Movements Marked "17 J" and "Adjusted." #428927: Verified as Nickel Movement, Unadjusted, Plain Regulator (Consistent with Grade 66) #428983: Verified as Two-Tone Movements Marked "17 J" and "Adjusted."

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.

okiejohn 409 · December 9, 2024

Serial Number 428983 was reported as inaccurate.

Note: This is a two-toned movement, 17 jewels and is
marked as adjusted. DEFINATELY NOT a Grade 66.
Hairspring is on the right end of top
plate...Perhaps a Grade 61 or 62A.

Curator Response: Thanks for the report. I have added this to the research notes for the run.