Pocket Watch Database

From the American Horology Archive:
Rockford Grade 545 Pocket Watch

Rockford Watch Co.

Grade: 545

Production Information Missing From Factory Records. See Research Notes.

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 670379
Grade: 545
Model: 5
Estimated Production Year: 1906
Run Quantity: 900
Grade/Model Run: 6 of 9
Grade/Model Total Production: 5,500
Size: 16s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Double Roller: Yes
Center Wheel Material: Gold
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
Railroad Grade Classification: Class A
Data Research: 1907 Rockford Serial List
Case: Various
Run ID: 978.545G6.16S218.165M27.O357.L734.21J92
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
16.56
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
169.25
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.857%
Registry Population: 6 (0.67%)
Research Note: #670379: Verified as Marked "540" and is Pendant-Set. #670405: Verified as Marked "545." #670432: Reported as Marked "545."

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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.


ChrisG Top Contributor Supporter 541 · January 14, 2024

Serial Number 670148 was reported as inaccurate.

Note: Image - 266598873315

funkywatches 69 · November 15, 2021

Serial Number 670204 was reported as accurate.

Anonymous · October 27, 2020

Serial Number 670432 was reported as inaccurate.

Note: This one is also marked 545 adjusted 5 positions
21 jewels Rockford Watch Co. Double Roller and is
(pendant set)
Not Railroad Grade.
Curator Response: Thanks for the report. This information has been noted in the research notes for this run.

jason4kstate 246 · August 3, 2020

Serial Number 670196 was reported as accurate.

Anonymous · June 24, 2020

Serial Number 670451 was reported as inaccurate.

Note: The movement associated with this serial number is
stem set, instead of lever set. All other
information is correct.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

okiejohn 379 · January 26, 2019

Serial Number 670379 was reported as inaccurate.

Note: This movement is clearly marked as a Grade 540,
despite the SN being outside of the range for this
Grade (see photo). It is also a stem set instead
of a lever set the database says it should be for
a Grade 540.

okiejohn 379 · January 26, 2019

Serial Number 670379 was reported as accurate.

Anonymous · April 28, 2018

Serial Number 670408 was reported as accurate.

fixmenow 31 · November 23, 2017

Serial Number 670405 was reported as inaccurate.

Note: 16 size, Model 545, 21 Jewels, RR Grade
Changes since this report was submitted:
Grade changed from Unknown to 545
Size changed from 18 to 16
Jewels changed from ? to 21j
Factory Model changed from 0 to 5
Railroad Grade changed from No to Yes

Anonymous · June 22, 2016

Serial Number 670254 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 545
Size changed from 18 to 16
Jewels changed from ? to 21j
Factory Model changed from 0 to 5
Railroad Grade changed from No to Yes

Brycef 107 · December 17, 2014

Serial Number 670198 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 545
Size changed from 18 to 16
Jewels changed from ? to 21j
Factory Model changed from 0 to 5
Railroad Grade changed from No to Yes

Anonymous · May 13, 2013

Serial Number 670144 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 545
Size changed from 18 to 16
Jewels changed from ? to 21j
Movement Configuration changed from Hunting to Openface
Factory Model changed from 0 to 5
Plate changed from Full to Bridge
Rockford Grade 545 Pocket Watch