Pocket Watch Database

From the American Horology Archive:
Rockford Grade 83 Pocket Watch

Rockford Watch Co.

Grade: 83

Private Label(s) in Run:

T. H. Gill - Marengo, Ill.

What is a Private Label?
Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 417515
Grade: 83
Model: 8
Estimated Production Year: 1893
Run Quantity: 500
Grade/Model Run: 25 of 32
Grade/Model Total Production: 21,100
Variant Est. Production: 500 (18S-M8-17J)
Size: 18s
Jewels: 17j
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Inlay Color: Black
Movement Setting: Lever
Plate: Full Plate
Regulator: Type 6
Hairspring: Breguet
Escapement Type: Straight-line
Adjusted: Mixed
Movement Markings: R.W.Co.
Rockford Ill.
Data Research: 1907 Rockford Serial List
Case: Various
Run ID: 457.83G25.18S393.188M107.H249.L320.17J14
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
63.17
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
649.40
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.286%
Registry Population: 4 (0.80%)
$ Estimated Value (12 Month Change): -6.25% Analyzing 113 Sales
Research Note: Rockford Serial Lists designate this run as featuring 17 Jewels instead of 15 like other Grade 83 runs. #417681: Verified as Marked "17 J" with features more consistent with the Grade 82. #417515: Verified as Private Label Marked "T. H. Gill - Marengo, Ill." with 17 Jewels.

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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.


Radron 109 · December 5, 2019

Serial Number 417515 was reported as inaccurate.

Note: This unit is a private label marked "T. H. Gill,
Marengo, Ill." on both the SS dial and the 17J
movement. Jewels verified. Unique checkerboard
pattern. See collection.
Changes since this report was submitted:
Jewels changed from 15j to 17j

Radron 109 · October 28, 2019

Serial Number 417681 was reported as inaccurate.

Note: Marked 17J, verified accurate. Also marked
adjusted. See collection. The description of a
model 82 fits this movement better than that of a
model 83.
Changes since this report was submitted:
Jewels changed from 15j to 17j

Anonymous · November 29, 2017

Serial Number 417684 was reported as accurate.

Rockford Grade 83 Pocket Watch