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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/415535/link
Access Date: April 23, 2025
From the American Horology Archive:
Rockford Grade 80 Pocket Watch
Rockford Watch Co.

Grade: 80

Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 415535 Question Mark
Grade: 80 Question Mark
Variation: 17J Question Mark
Model: 8 Question Mark
Estimated Production Year: 1893 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 1 of 5 Question Mark
Grade/Model Total Production: 250 Question Mark
Variant Est. Production: 175 (18S-M8-17J-HTL-APTI-17J) Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Jewel Material: Ruby Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Two-Tone Question Mark
Movement Inlay Color: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Micrometric Question Mark
Hairspring: Breguet Question Mark
Escapement Type: Straight-line Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Movement Markings: R.W.Co.
Rockford Ill.
17 J
Adjusted
Case: Various Question Mark
Run ID: 451.80G1.18S387.188M105.H249.L314.17J10 Question Mark
Data Research: 1907 Rockford Serial List
 Question Mark
Database Version: v52.640 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 0.75 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 7.66 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.039% Question Mark
Registry Population:
Scoped for This Run Only		2 (2.00%) Question Mark
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Production Metrics Tree: Grade 80

Target Profile: 18S-M8-17J-HTL-APTI-17J

Rockford Grade 80 (All Variations): 250 ETP
18S: 250 100.00%
18s, Grade 80
18S-M8: 250 100.00%
18s, Grade 80, Model 8
18S-M8-17J: 225 90.00%
18s, Grade 80, Model 8, 17 Jewels		 Other: 25
Other Jewels or Unclassified
18S-M8-17J-HTL: 225 90.00%
18s, Grade 80, Model 8, 17 Jewels, Hunting/Lever/Two-Tone
18S-M8-17J-HTL-APTI: 225 90.00%
18S-M8-17J-HTL-APTI-17J: 175 70.00% Other: 50
Other Variants or Unclassified

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 2 watches in the population registry for this run with 2 images.
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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.

CJEmpire3 Supporter 126 · April 13, 2025

Serial Number 415535 was reported as accurate.

Rockford Grade 80 Pocket Watch