Pocket Watch Database


From the American Horology Archive:
Elgin Grade 150 Pocket Watch

Elgin National Watch Co.

Grade: 150

Various movements in run converted to lever-set Grade 277. See Research Notes.

Manufacturer: Elgin Question Mark
Manufacturer Location: Elgin, Illinois Question Mark
Movement Serial Number: 7875013 Question Mark
Grade: 150 Question Mark
Model: 5 Question Mark
Class: 7 Question Mark
Estimated Production Year: 1899 Question Mark
Run Quantity: 531 Question Mark
Grade/Model Run: 6 of 23 Question Mark
Grade/Model Total Production: 7,820 Question Mark
Variant Est. Production: 6,820 (18S-M5-21J) Question Mark
Size: 18s Question Mark
Jewels: 21j Question Mark
Jewel Material: Ruby Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Gilt Question Mark
Movement Setting: Pendant Question Mark
Plate: Full Plate Question Mark
Barrel: Going Question Mark
Train: Quick Question Mark
Regulator: Moseley Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Adjustment Tolerance: [14] 3P +/- 10 s/24hrs., Temp. +/- 4 s/16hrs., Reg. +/- 0-2 s/24hrs. Question Mark
Railroad Grade: Yes Question Mark
Railroad Grade Classification: Class C Question Mark
U.S. Patents: 77078, 347272, 345619 Question Mark
Case: Various Question Mark
Run ID: 3104.150G6.18S1664.185M516.O724.P1261.21J27 Question Mark
Data Research: 1904 Elgin Serial List
1915 Elgin Serial List
1927/1950 Elgin Serial List
Question Mark
Database Version: v52.517 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
23.54 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
9.04 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.015% Question Mark
Registry Population:
Scoped for This Run Only
8 (1.51%) Question Mark
Research Note: Run 7875001-7876000 started as Grade 150 (Pendant-Set). According to the master records, several movements were changed from Pendant-Set to Lever-Set (Grade 277). These are dispersed throughout the original range. #7875013: Verified as Lever-Set (277) [eBay #254484894036].

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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 · January 18, 2023

Serial Number 7875019 was reported as accurate.

cranemaker Supporter 83 · February 9, 2020

Serial Number 7875013 was reported as inaccurate.

Note: Grade 277, Model 7, Class 65 Lever set Movement.
Curator Response: Verified. [eBay #254484894036]

Anonymous · February 5, 2018

Serial Number 7875402 was reported as accurate.

Anonymous · May 13, 2016

Serial Number 7875286 was reported as accurate.

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

Anonymous · June 12, 2014

Serial Number 7875223 was reported as accurate.

Anonymous · April 7, 2014

Serial Number 7875332 was reported as accurate.

Anonymous · September 14, 2012

Serial Number 7875121 was reported as inaccurate.

Note: 21j
Adjusted
Changes since this report was submitted:
Jewels changed from 20j to 21j
Adjusted changed from No to Yes
Elgin Grade 150 Pocket Watch