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: 535976
Grade: 910
Model: 9
Estimated Production Year: 1899
Run Quantity: 500
Grade/Model Run: 4 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: 696.910G7.18S629.189M45.O230.L558.21J15
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
15.65
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: 10 (2.00%)
$ Estimated Value (12 Month Change): 11.76% Analyzing 56 Sales
Research Note: #535823, #535874, #535891, and #535866 Reported as Marked "King Edward"

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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.


Anonymous · January 4, 2023

Serial Number 535874 was reported as inaccurate.

Note: This one is marked KING EDWARD.
Curator Response: Thanks for the confirmation!

Anonymous · January 27, 2021

Serial Number 535891 was reported as inaccurate.

Note: This one is mark King Edward 21 jewel adjusted.
Curator Response: Thanks for the report. This information has been noted in the research notes for this run.

texnet 684 · May 22, 2019

Serial Number 536092 was reported as accurate.

Anonymous · May 4, 2019

Serial Number 536092 was reported as accurate.

Anonymous · May 4, 2018

Serial Number 535823 was reported as inaccurate.

Note: Engraved "King Edward", "adjusted", and without
the "RG" marking

Anonymous · March 1, 2018

Serial Number 535930 was reported as accurate.

Anonymous · August 15, 2017

Serial Number 535840 was reported as accurate.

Anonymous · July 9, 2015

Serial Number 535977 was reported as accurate.

Cruzax 1 · June 26, 2014

Serial Number 535976 was reported as accurate.

Cruzax 1 · June 26, 2014

Serial Number 535976 was reported as accurate.

Anonymous · May 3, 2014

Serial Number 535899 was reported as accurate.

Anonymous · April 16, 2013

Serial Number 535866 was reported as inaccurate.

Note: Plates Marked/ King Edward ,Plymouth Watch Co.

Anonymous · April 16, 2013

Serial Number 535866 was reported as accurate.

Rockford Grade 910 Pocket Watch