Pocket Watch Database

From the American Horology Archive:
Rockford Grade 900 Pocket Watch

Rockford Watch Co.

Grade: 900

Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 535364 Question Mark
Grade: 900 Question Mark
Model: 9 Question Mark
Estimated Production Year: 1899 Question Mark
Run Quantity: 200 Question Mark
Grade/Model Run: 2 of 4 Question Mark
Grade/Model Total Production: 1,000 Question Mark
Size: 18s Question Mark
Jewels: 24j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Double Roller: Yes Question Mark
Regulator: Type 7 Question Mark
Hairspring: Breguet Question Mark
Escapement Type: Straight-line Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Case: Various Question Mark
Run ID: 692.900G3.18S625.189M43.O228.L554.24J4 Question Mark
Data Research: 1907 Rockford Serial List
Question Mark
Database Version: v52.518 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.01 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
30.75 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.156% Question Mark
Registry Population:
Scoped for This Run Only
13 (6.50%) Question Mark

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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 · June 24, 2022

Serial Number 535304 was reported as accurate.

Anonymous · May 13, 2022

Serial Number 535278 was reported as accurate.

Anonymous · August 11, 2021

Serial Number 535276 was reported as accurate.

Anonymous · January 27, 2021

Serial Number 535304 was reported as accurate.

Anonymous · February 23, 2020

Serial Number 535223 was reported as accurate.

Anonymous · December 22, 2018

Serial Number 535249 was reported as accurate.

Anonymous · December 4, 2018

Serial Number 535277 was reported as accurate.

Anonymous · October 19, 2018

Serial Number 535304 was reported as accurate.

Anonymous · October 12, 2018

Serial Number 535304 was reported as accurate.

Anonymous · October 8, 2017

Serial Number 535226 was reported as accurate.

Anonymous · February 14, 2017

Serial Number 535278 was reported as accurate.

Anonymous · February 1, 2017

Serial Number 535278 was reported as accurate.

Anonymous · October 17, 2016

Serial Number 535272 was reported as accurate.

pocketwatch101 111 · April 16, 2016

Serial Number 535226 was reported as accurate.

pocketwatch101 111 · April 16, 2016

Serial Number 535364 was reported as accurate.

Anonymous · December 11, 2015

Serial Number 535236 was reported as accurate.

Anonymous · December 10, 2015

Serial Number 535236 was reported as accurate.

Anonymous · June 8, 2015

Serial Number 535226 was reported as accurate.

Anonymous · April 13, 2015

Serial Number 535236 was reported as accurate.

Anonymous · March 25, 2014

Serial Number 535205 was reported as accurate.

aberna 1 · December 21, 2013

Serial Number 535304 was reported as accurate.

Anonymous · December 21, 2013

Serial Number 535304 was reported as accurate.

eparso 59 · July 2, 2013

Serial Number 535353 was reported as accurate.

Rockford Grade 900 Pocket Watch