Pocket Watch Database


From the American Horology Archive:
Illinois Grade Hoyt Pocket Watch

Illinois Watch Co.

Grade: Hoyt

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 49647 Question Mark
Grade: Hoyt Question Mark
Model: 1 Question Mark
Estimated Production Date: March 1879 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 15 of 18 Question Mark
Grade/Model Total Production: 14,400 Question Mark
Size: 18s Question Mark
Jewels: 9j Question Mark
Jewel Setting: Burnished Jewels Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: Full Plate Question Mark
Barrel: Going Question Mark
Balance Type: Expansion Question Mark
Train: Coarse Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 16.5, 36.5, 53.0 Question Mark
Case Screw Locations: O-36.5, H-51.5 Question Mark
Movement Markings: Hoyt
Springfield, Ill.
Patent Pinion
Case: Various Question Mark
Run ID: 75.G17.18S75.181M61.A61.K61.9J17 Question Mark
Database Version: v52.469 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
43.35 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
146.24 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.253% Question Mark
Registry Population:
Scoped for This Run Only
1 (1.00%) Question Mark
Research Note: #49633: Reported as "Hoyt."
#49647: Verified as "Hoyt" with 9 Jewels.
Meggers/Ehrhardt sources suggest this run is "Miller," but changed from factory records designated as "Hoyt."

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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.


RomanWatchRepair 33 · January 16, 2023

Serial Number 49633 was reported as inaccurate.

Note: It is marked "Hoyt" and possibly 9 jewel.
Hairspring is held in a stud that is on balance
wheel cock.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from Miller to Hoyt
Jewels changed from 15j to 9J
Railroad Grade changed from Yes to No

Dave895 Supporter 101 · February 10, 2022

Serial Number 49647 was reported as inaccurate.

Note: Marked as Hoyt 9 Jewel
Curator Response: Thanks for the report. This information has been noted in the research notes for this run.
Changes since this report was submitted:
Grade changed from Miller to Hoyt
Jewels changed from 15j to 9J
Movement Finish changed from Gilt or Nickel to Gilt

RomanWatchRepair 33 · March 24, 2017

Serial Number 49633 was reported as inaccurate.

Note: Still "HOYT", hairspring is pinned to the cock
with a stud, not sure that it's a 15 jewel, could
be less, KW, KS,
Changes since this report was submitted:
Grade changed from Miller to Hoyt
Jewels changed from 15j to 9J
Illinois Grade Hoyt Pocket Watch