Pocket Watch Database

From the American Horology Archive:
Rockford Grade 87 Pocket Watch

Rockford Watch Co.

Grade: 87

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 375990
Grade: 87
Variation: LP
Model: 7
Estimated Production Year: 1891
Run Quantity: 1,000
Grade/Model Run: 8 of 8
Grade/Model Total Production: 5,500
Size: 18s
Jewels: 15j
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Two-Tone
Movement Setting: Lever
Plate: Full Plate
Regulator: Type 6
Hairspring: Breguet
Escapement Type: Straight-line
Standard Dial Type: Double-Sunk
Adjusted: Yes
Movement Markings: R.W.Co.
Rockford Ill.
Adjusted
Data Research: 1907 Rockford Serial List
Case: Various
Run ID: 374.87G8.18S350.187M60.O72.L237.15J154
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
16.46
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: 13 (1.30%)

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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 · April 3, 2019

Serial Number 375704 was reported as accurate.

Anonymous · February 10, 2019

Serial Number 375268 was reported as accurate.

Anonymous · December 29, 2018

Serial Number 375126 was reported as accurate.

Anonymous · July 22, 2018

Serial Number 375123 was reported as accurate.

Anonymous · April 12, 2017

Serial Number 375857 was reported as accurate.

Kevin H 84 · February 5, 2017

Serial Number 375797 was reported as accurate.

Anonymous · January 16, 2016

Serial Number 375375 was reported as inaccurate.

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

Anonymous · June 9, 2015

Serial Number 375347 was reported as accurate.

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

Anonymous · September 1, 2014

Serial Number 375315 was reported as accurate.

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

Anonymous · September 1, 2014

Serial Number 375315 was reported as accurate.

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

Anonymous · April 14, 2014

Serial Number 375074 was reported as inaccurate.

Note: Micrometric adjuster for this serial number is
located on the balance arm, not on the plate.

Marked Adjusted

Can be either lever or pendant set by turning a
set screw.
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

catdanc 27 · October 8, 2013

Serial Number 375486 was reported as accurate.

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

Anonymous · April 8, 2013

Serial Number 375921 was reported as inaccurate.

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

Anonymous · April 7, 2013

Serial Number 375921 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone
Rockford Grade 87 Pocket Watch