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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/elgin/10421940
Access Date: May 03, 2024
From the American Horology Archive:
Elgin Grade 148 Pocket Watch
Elgin National Watch Co.

Grade: 148

Elgin Nat'l. Watch Co.

Manufacturer: Elgin
Manufacturer Location: Elgin, Illinois
Movement Serial Number: 10421940
Grade: 148
Variation: Elgin Nat'l. Watch Co.
Model: 5
Class: 9
Estimated Production Year: 1906
Run Quantity: 75
Grade/Model Run: 23 of 34
Grade/Model Total Production: 33,885
Variant Est. Production: 3,075 (18S-M5-17J-ONP-AT-ELGIN NAT'L. WATCH CO.)
Size: 18s
Jewels: 17j
Jewel Setting: Gilded Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Full Plate
Barrel: Going
Train: Quick
Regulator: Moseley
Hairspring: Breguet
Escapement Type: Straight-line
Standard Dial Type: Single-Sunk
Adjusted: Yes
Adjusted to Temperature: Yes
Railroad Grade: No
U.S. Patents: 77078, 347272, 345619
Data Research: 1904 Elgin Serial List
1915 Elgin Serial List
1927/1950 Elgin Serial List
Case: Various
Run ID: 4315.148G23.18S2138.185M739.O1266.P2212.17J414
Database Version: v52.246
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 102.02
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 39.37
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.067%
Registry Population: 3 (4.00%)
$ Estimated Value (12 Month Change): 5.93% Analyzing 131 Sales
Research Note: Elgin Material Catalog Serial Lists designate 10,421,001-10,422,000 as Grade 148 with an appended note stating 10,421,901-10,421,925 were converted to Grade 283. #10421999: Verified as marked "Elgin Nat'l. Watch Co." instead of "G.M. Wheeler."
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Production Metrics Tree: Grade 148

Target Profile: 18S-M5-17J-ONP-AT-ELGIN NAT'L. WATCH CO.

Elgin Grade 148 (All Variations): 33,885 ETP
18S: 33,885 100.00%
18s, Grade 148
18S-M5: 33,885 100.00%
18s, Grade 148, Model 5
18S-M5-17J: 25,580 75.49%
18s, Grade 148, Model 5, 17 Jewels		 Other: 8,305
Other Jewels or Unclassified
18S-M5-17J-ONP: 25,580 75.49%
18s, Grade 148, Model 5, 17 Jewels, Openface/Pendant/Nickel
18S-M5-17J-ONP-AT: 25,580 75.49%
18S-M5-17J-ONP-AT-ELGIN NAT'L. WATCH CO.: 3,075 9.07%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 3 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.

JPFour Supporter 8 · June 27, 2021

Serial Number 10421999 was reported as inaccurate.

Note: Maybe, it is not marked G. M. Wheeler. All other
data seems correct. Would be 1st from last 148
Grade made.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.
Elgin Grade 148 Pocket Watch