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Vintage Rockford 18s 11j Model 7 Grade 66 Pocket Watch Full Hunter Silveroid
$229.00
Check Price Source: eBay.com
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/428983/movement
Access Date: December 28, 2024
From the American Horology Archive:
Rockford Grade 66 Pocket Watch
Rockford Watch Co.

Grade: 66

Production Inconsistent with Factory Records. See Research Notes.

Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 428983 Question Mark
Grade: 66 Question Mark
Variation: LS Question Mark
Model: 7 Question Mark
Estimated Production Year: 1893 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 16 of 17 Question Mark
Grade/Model Total Production: 14,700 Question Mark
Variant Est. Production: 5,000 (18S-M7-11J-ONL-U-LS) Question Mark
Size: 18s Question Mark
Jewels: 11j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Type 6 Question Mark
Hairspring: Flat Question Mark
Escapement Type: Straight-line Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: R.W.Co.
Rockford Ill.
Case: Various Question Mark
Run ID: 470.66G16.18S403.187M85.O97.L333.11J110 Question Mark
Data Research: 1907 Rockford Serial List
 Question Mark
Database Version: v52.528 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 44.26 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 452.42 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 2.289% Question Mark
Registry Population:
Scoped for This Run Only		6 (0.60%) Question Mark
$ Estimated Value (12 Month Change): 19.49% Analyzing 72 Sales Question Mark
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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Production Metrics Tree: Grade 66

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

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%
18S-M7-11J-ONL-U-LS: 5,000 34.01% Other: 9,000
Other Variants or Unclassified

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 6 watches in the population registry for this run with 3 images.
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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 397 · 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.

ChrisG Top Contributor Supporter 611 · January 11, 2024

Serial Number 428068 was reported as inaccurate.

Note: Marked 17 jewels, adjusted, no LP function, 2
tone.

okiejohn 397 · February 10, 2022

Serial Number 428927 was reported as accurate.

Anonymous · February 20, 2019

Serial Number 428757 was reported as inaccurate.

No further details were submitted with the report.

Railtrumpet Supporter 4 · December 3, 2017

Serial Number 428427 was reported as inaccurate.

Note: 428427 is 17j, 2-tone
Rockford Grade 66 Pocket Watch