Pocket Watch Database

From the American Horology Archive:
Illinois Grade Bunn Special Pocket Watch

Illinois Watch Co.

Grade: Bunn Special

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 2001181
Grade: Bunn Special
Model: 6
Estimated Production Year: 1907
Run Quantity: 150
Grade/Model Run: 174 of 257
Grade/Model Total Production: 76,618
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Bright Spotted
Movement Signing Style: Old English
Movement Inlay Color: Black
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Barrel: Going
Train: Fast
Regulator: Reed
Adjusted: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 2.0, 21.5, 38.5
Case Screw Locations: 23.5, 51.5
Movement Markings: Bunn Special
Springfield, Ill.
21 Ruby Jewels
Adjusted
Temperature, 6 Positions
Isochronism
Double Roller
Case: Various
Run ID: 5998.G218.18S3655.186M965.O2420.L4821.21J288
Database Version: v52.246
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
230.68
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
778.54
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.348%
Registry Population: 4 (2.67%)
$ Estimated Value (12 Month Change): -5.92% Analyzing 745 Sales
Research Note: Original factory records suggest 2001101-2001400 were produced as 19-Jewel "Bunn" grade movements. However, multiple 21-Jewel Bunn Special movements have been observed early in this run. As a result, the database has been adjusted to reflect this production. [This run has been extended to account for the Bunn Special movements observed in the following "Bunn" run.]

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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 · February 17, 2023

Serial Number 2001106 was reported as inaccurate.

Note: Benjamin Franklin USA 21 Ruby Jewels
Adjusted
Temperature, 5 Positions
Isochronism
Double Roller
Curator Response: Thanks for the confirmation!
Changes since this report was submitted:
Adjusted # Positions changed from 5 to 6

Anonymous · October 19, 2018

Serial Number 2001096 was reported as accurate.

Anonymous · December 13, 2014

Serial Number 2001057 was reported as accurate.

1David 9 · September 12, 2014

Serial Number 2001181 was reported as inaccurate.

Note: My movement is marked on the plate "Bunn Special",
21 Ruby Jewels, ADJUSTED Temperature 6 positions
Isochronism - Double Roller
Changes since this report was submitted:
Grade changed from Bunn to Bunn Special
Jewels changed from 19j to 21j
Adjusted # Positions changed from 5 to 6

Anonymous · January 28, 2013

Serial Number 2001181 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · November 27, 2012

Serial Number 2001181 was reported as inaccurate.

Note: full plate
Changes since this report was submitted:
Double Roller changed from Unknown to Yes
Illinois Grade Bunn Special Pocket Watch