Pocket Watch Database

From the American Horology Archive:
Rockford Grade 910 Pocket Watch

Rockford Watch Co.

Grade: 910

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 660003
Grade: 910
Model: 9
Estimated Production Year: 1905
Run Quantity: 100
Grade/Model Run: 7 of 7
Grade/Model Total Production: 5,200
Size: 18s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Train: Quick
Regulator: Micrometric
Hairspring: Breguet
Escapement Type: Straight-line
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Data Research: 1907 Rockford Serial List
Case: Various
Run ID: 957.910G10.18S701.189M80.O348.L724.21J80
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
15.57
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
160.02
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.810%
Registry Population: 1 (1.00%)
$ Estimated Value (12 Month Change): 11.76% Analyzing 56 Sales

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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.


ralph1 105 · October 23, 2023

Serial Number 660056 was reported as accurate.

okiejohn 379 · January 25, 2019

Serial Number 660003 was reported as accurate.

Rockford Grade 910 Pocket Watch