Pocket Watch Database


From the American Horology Archive:
Rockford Grade 86 Pocket Watch

Rockford Watch Co.

Grade: 86

Mixed Run: Adjusted and Unadjusted Movements

Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 279878 Question Mark
Grade: 86 Question Mark
Variation: LS/LP Question Mark
Model: 7 Question Mark
Estimated Production Year: 1888 Question Mark
Run Quantity: 800 Question Mark
Grade/Model Run: 3 of 19 Question Mark
Grade/Model Total Production: 9,550 Question Mark
Variant Est. Production: 2,300 (18S-M7-15J-ONL-U/A-LS/LP) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Signing Style: Old English Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Type 5 Question Mark
Hairspring: Breguet Question Mark
Escapement Type: Straight-line Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Mixed Question Mark
Movement Markings: R.W.Co.
Rockford Ill.
Case: Various Question Mark
Run ID: 250.86G3.18S248.187M14.O26.L113.15J89 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
28.75 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
293.91 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.487% Question Mark
Registry Population:
Scoped for This Run Only
10 (1.25%) Question Mark
Research Note: #279463: Verified as Marked "Adjusted." #279672 and #279450: Verified as not marked as being adjusted.

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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.


MoatsJustin1 top-contributor 5272 · November 7, 2023

Serial Number 279992 was reported as accurate.

okiejohn 397 · June 15, 2020

Serial Number 279450 was reported as accurate.

Radron 109 · May 23, 2020

Serial Number 279773 was reported as accurate.

Anonymous · September 20, 2019

Serial Number 279621 was reported as accurate.

oilseed Supporter 471 · February 7, 2018

Serial Number 279488 was reported as inaccurate.

Note: no 'jewel count' engraved on plates. appears to
be 15 jewels (as noted).

Anonymous · October 7, 2015

Serial Number 279568 was reported as accurate.

Anonymous · December 24, 2014

Serial Number 279756 was reported as accurate.

Anonymous · September 27, 2014

Serial Number 279984 was reported as accurate.

Anonymous · September 14, 2014

Serial Number 279984 was reported as accurate.

Flyskippy1 29 · February 2, 2014

Serial Number 279328 was reported as accurate.

hoopibabs 42 · December 2, 2013

Serial Number 279911 was reported as accurate.

Anonymous · May 7, 2013

Serial Number 279393 was reported as inaccurate.

Note: This is a grade 87 movement with the regulator
rotated clockwise 150 deg. and hairspring stud
located in an
area between the balance je
wel and the balance screw. There is a screw
adjustment on the regulator.
from acticle on NAWCC site:

http://www.nawcc-ch149.com/db_resch/Rockford%20Re
view.pdf

page 7 and 8.
Rockford Grade 86 Pocket Watch