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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/415505
Access Date: May 15, 2024
From the American Horology Archive:
Rockford Grade 80 Pocket Watch
Rockford Watch Co.

Grade: 80

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 415505
Grade: 80
Variation: 17J
Model: 8
Estimated Production Year: 1893
Run Quantity: 100
Grade/Model Run: 1 of 5
Grade/Model Total Production: 250
Variant Est. Production: 175 (18S-M8-17J-HTL-APTI-17J)
Size: 18s
Jewels: 17j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Two-Tone
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Regulator: Micrometric
Hairspring: Breguet
Escapement Type: Straight-line
Adjusted: Yes
Adjusted to Position: Yes
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Movement Markings: R.W.Co.
Rockford Ill.
17 J
Adjusted
Data Research: 1907 Rockford Serial List
Case: Various
Run ID: 451.80G1.18S387.188M105.H247.L314.17J10
Database Version: v52.281
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 0.75
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 7.66
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.039%
Registry Population: 1 (1.00%)
Value Guide
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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 is 1 watch in the population registry for this run with 1 image.
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Rockford Grade 80 Pocket Watch