Pocket Watch Database

From the American Horology Archive:
Rockford Grade 70 Pocket Watch

Rockford Watch Co.

Grade: 70

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 339441
Grade: 70
Model: 8
Estimated Production Year: 1889
Run Quantity: 500
Grade/Model Run: 3 of 4
Grade/Model Total Production: 1,600
Size: 18s
Jewels: 16j
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Two-Tone
Movement Setting: Lever
Plate: Full Plate
Regulator: Micrometric
Hairspring: Breguet
Escapement Type: Straight-line
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Movement Markings: R.W.Co.
Rockford Ill.
Adjusted
Case: Various
Run ID: 320.70G3.18S318.188M76.H157.L183.16J6
Data Research: 1907 Rockford Serial List
Database Version: v52.407
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
4.81
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
49.22
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.249%
Registry Population:
Scoped for This Run Only
9 (1.80%)
Research Note: #339441: Verified as Marked "Special."

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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.


Jaharvey38 Supporter 14 · May 17, 2023

Serial Number 339069 was reported as accurate.

Anonymous · February 8, 2023

Serial Number 339296 was reported as accurate.

Anonymous · April 21, 2022

Serial Number 339010 was reported as accurate.

Anonymous · January 27, 2022

Serial Number 339010 was reported as accurate.

Anonymous · October 30, 2021

Serial Number 339010 was reported as accurate.

Anonymous · October 22, 2019

Serial Number 339126 was reported as accurate.

Radron 109 · April 20, 2019

Serial Number 339441 was reported as inaccurate.

Note: Movement is two tone. The word "ADJUSTED" is moved
to above the serial no. In it's place is the
word"Special".
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · March 21, 2019

Serial Number 339068 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · March 9, 2019

Serial Number 339441 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · June 23, 2018

Serial Number 339086 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · July 1, 2017

Serial Number 339295 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

ngupaan 95 · June 3, 2016

Serial Number 339225 was reported as inaccurate.

Note: Marked "Adjusted"
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · October 29, 2014

Serial Number 339173 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Jaustin 3 · April 24, 2014

Serial Number 339173 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · February 18, 2013

Serial Number 339014 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone
Rockford Grade 70 Pocket Watch